Amie Thomasson has articulated a novel conception of ontological debates, defending an easy approach to ontological questions as part of the articulation of a deflationary metaphysical view (Thomasson, 2015). After raising some concerns to the approach, we sketch a neutralist alternative to her ontological framework, offering an even easier way of conducting ontological debates.

Easy Ontologists, most notably Thomasson (2015), argue that ontological questions are shallow. They think that these questions can either be answered by using our ordinary conceptual competence—of course tables exist!—or are meaningless, or else should be answered through conceptual re-engineering. Ontology thus is “easy”, requiring no distinctively metaphysical investigation. This paper raises a two-stage objection to Easy Ontology. We first argue that questions concerning which entities exist are inextricably bound up with “ontological category questions”, which are questions concerning the identity (...) of and differences between kinds of entities. We then argue that ontological category questions do not have trivial answers, are meaningful, and cannot be answered through conceptual re-engineering. Easy Ontology hence does not constitute a comprehensive ontological methodology. While some of ontology might be easy, category questions form a central part of ontology and are not answered easily. (shrink)

In a number of recent publications Thomasson has defended a deflationary approach to ontological disputes, according to which ontological disputes are relatively easy to settle, by either conceptual analysis, or conceptual analysis in conjunction with empirical investigation. Thomasson’s “easy” approach to ontology is intended to derail many prominent ontological disputes. In this paper I present an objection to Thomasson’s approach to ontology. Thomasson’s approach to existence assertions means that she is committed to the view that application conditions associated with any (...) term “K” with non-trivial application conditions must refer to the existence of things other than Ks. Given other components of her meta-ontological scheme, this leads to either an infinite regress or circularity of application conditions, both of which seem objectionable. Accordingly, some part of Thomasson’s meta-ontological scheme should be modified or abandoned. (shrink)

In einer Mixed-Methods-Studie werden elf neu zugewanderten Schüler*innen in der Jahrgangsstufe Einführungsphase am Gymnasium im Rahmen einer Unterrichtsreihe Texte in Easy-to-Read-Versionen (Deutsch: Leichte Sprache) vorgelegt und sowohl sprachliche/fachliche als auch emotionale/soziale Auswirkungen auf die Lernenden untersucht. Außerdem wird ein auf die Zielgruppe angepasstes, zweifach gestuftes Regelwerk für die Erstellung solcher Textversionen entwickelt und Rahmenbedingungen für dessen Einsatz konkretisiert. Ziel ist es, dass neu zugewanderten Schüler*innen, die u.U. wenig oder kaum Englisch können, aber aufgrund ihres Alters in eher fortgeschrittene Englischlerngruppen eingegliedert (...) werden, dennoch die Möglichkeit haben, sich im Englischunterricht einzubringen und mit der peer group zu lernen. Dabei übernimmt das Easy-to-Read eine Brückenfunktion, bis dem Englischunterricht auf Regelniveau gefolgt werden kann. Die AutorinMichaela Quast ist seit 2016 abgeordnete Studienrätin in der fachdidaktischen Abteilung des Englischen Seminars I der Universität zu Köln. (shrink)

This article aims to provide a structural analysis of the problems related to the easy knowledge problem. The easy knowledge problem is well known. If we accept that we can have basic knowledge via a source without having any prior knowledge about the reliability or accuracy of this source, then we can acquire knowledge about the reliability or accuracy of this source too easily via information delivered by the source. Rejecting any kind of basic knowledge, however, leads into an infinite (...) regress and, plausibly, to skepticism. The article argues that the third alternative, accepting basic knowledge but rejecting easy knowledge, entails closure failure. This is obviously the case for deductive bootstrapping, but, notably, the problem also arises for inductive bootstrapping. Hence, the set of problems related to the easy knowledge problem has the structure of a trilemma. We are forced to accept easy knowledge, closure failure, or skepticism. (shrink)

This is a contribution to a symposium on Amie Thomasson’s Ontology Made Easy (2015). Thomasson defends two deflationary theses: that philosophical questions about the existence of numbers, tables, properties, and other disputed entities can all easily be answered, and that there is something wrong with prolonged debates about whether such objects exist. I argue that the first thesis (properly understood) does not by itself entail the second. Rather, the case for deflationary metaontology rests largely on a controversial doctrine about the (...) possible meanings of ‘object’. I challenge Thomasson's argument for that doctrine, and I make a positive case for the availability of the contested, unrestricted use of ‘object’. (shrink)

One argument that is frequently invoked against the technological enhancement of human functioning is that it is morally suspect, or even wrong, to take an easy shortcut. Some things that usually take effort, endurance or struggle can come easily with the use of an enhancer. This paper analyses the various arguments that circle round the idea that enhancement of human functioning is problematic because of the 'easy shortcut' that it offers. It discusses the concern that quick fixes lead to corrosion (...) of character and the idea that suffering, pain, hard work and effort are essential for real and worthy achievements, and argues that these views are largely mistaken. Next, the paper argues that the core worry about taking an easy shortcut is that it makes us lose sight of the complexities of our means and ends; in other words, the argument warns against reducing the richness of human activities. A vocabulary of 'practices', 'internal goods' and 'focal engagement' will be used to articulate this argument further. The conclusion is that the easy shortcut argument has no general validity as an argument against enhancement 'as such'. The paper urges us, however, to evaluate enhancement technologies not only in terms of their efficiency in reaching certain goals but also in terms of their contribution to intrinsically worthwhile human activities. It can point out some of the caveats, as well as the opportunities, of the use of enhancement technologies. (shrink)

Stewart Cohen has recently presented solutions to two forms of what he calls "The Problem of Easy Knowledge" ("Basic Knowledge and the Problem of Easy Knowledge," Philosophy and Phenomenological Research, LXV, 2, September 2002, pp. 309-329). I offer alternative solutions. Like Cohen's, my solutions allow for basic knowledge. Unlike his, they do not require that we distinguish between animal and reflective knowledge, restrict the applicability of closure under known entailments, or deny the ability of basic knowledge to combine with self-knowledge (...) to provide inductive evidential support. My solution to the closure version of the problem covers a variation on the problem that is immune to Cohen's approach. My response to the bootstrapping version presents reasons to question whether the problem case, as Cohen presents it, is even possible, and, assuming it is, my solution avoids a false implication of Cohen's own. The key to my solutions for both versions is the distinction between an inference's transferring epistemic support, on the one hand, and its not begging the question against skeptics, on the other. (shrink)

ABSTRACT This paper argues that the retort ‘easy for you to say’ is a complaint about the target’s standing, but that it invokes a standing norm that is unjustified. Moreover, I argue that in many cases the person for whom it is ‘easy to say’ should speak.

Stewart Cohen has recently presented solutions to two forms of what he calls “The Problem of Easy Knowledge” (“Basic Knowledge and the Problem of Easy Knowledge,” Philosophy and Phenomenological Research, LXV, 2, September 2002, pp. 309‐329). I offer alternative solutions. Like Cohen's, my solutions allow for basic knowledge. Unlike his, they do not require that we distinguish between animal and reflective knowledge, restrict the applicability of closure under known entailments, or deny the ability of basic knowledge to combine with self‐knowledge (...) to provide inductive evidential support. My solution to the closure version of the problem covers a variation on the problem that is immune to Cohen's approach. My response to the bootstrapping version presents reasons to question whether the problem case, as Cohen presents it, is even possible, and, assuming it is, my solution avoids a false implication of Cohen's own. The key to my solutions for both versions is the distinction between an inference's transferring epistemic support, on the one hand, and its not begging the question against skeptics, on the other. (shrink)

In this chapter I investigate epistemological consequences of the fact that seeming-based justification is elusive, in the sense that the subject can lose this justification simply by reflecting on her seemings. I argue that since seeming-based justification is elusive, the antisceptical bite of phenomenal conservatism is importantly limited. I also contend that since seeming-based justification has this feature, phenomenal conservatism isn’t actually afflicted by easy justification problems.

This paper has three aims. First, I’ll argue that there’s no good reason to accept any kind of ‘easy knowledge’ objection to externalist foundationalism. It might be a little surprising that we can come to know that our perception is accurate by using our perception, but any attempt to argue this is impossible seems to rest on either false premises or fallacious reasoning. Second, there is something defective about using our perception to test whether our perception is working. What this (...) reveals is that there are things we aim for in testing other than knowing that the device being tested is working. I’ll suggest that testing aims for sensitive knowledge that the device is working. Testing a device, such as our perceptual system, by using its own outputs may deliver knowledge, but it can’t deliver sensitive knowledge. So it’s a bad way to test the system. The big conclusion here is that sensitivity is an important epistemic virtue, although it is not necessary for knowledge. Third, I’ll argue that the idea that sensitivity is an epistemic virtue can provide a solution to a tricky puzzle about inductive evidence. This provides another reason for thinking that the conclusion of section two is correct: not all epistemic virtues are to do with knowledge. (shrink)

We argue that A. Damasio’s (1994) Somatic Marker hypothesis can explain why humans don’t generally suffer from the frame problem, arguably the greatest obstacle facing the Computational Theory of Mind. This involves showing how humans with damaged emotional centers are best understood as actually suffering from the frame problem. We are then able to show that, paradoxically, these results provide evidence for the Computational Theory of Mind, and in addition call into question the very distinction between easy and hard problems (...) in the contemporary philosophy of mind. (shrink)

According to Thomasson’s Easy Ontology, all existential questions have straightforward answers and are solvable by conceptual and empirical work. So there is no need for traditional metaphysics to solve them. First, I give some counterexamples to this thesis from incomplete and undecidable theories. Then I discuss some possible responses, I consider a wider sense of conceptual analysis and argue that even in this sense Easy ontology is not able to resolve the problem and must sacrifice either easiness or answerability. (...) Finally, I will argue that although traditional metaphysics does not make the undecidable sentences answerable, it can still make sense of them and helps us to understand why there are unanswerable questions at all. (shrink)

In this paper, I provide an easy road to nominalism which does not rely on a Field-type nominalization strategy for mathematics. According to this proposal, applications of mathematics to science, and alleged mathematical explanations of physical phenomena, only emerge when suitable physical interpretations of the mathematical formalism are advanced. And since these interpretations are rarely distinguished from the mathematical formalism, the impression arises that mathematical explanations derive from the mathematical formalism alone. I correct this misimpression by pointing out, in the (...) cases recently discussed by Mark Colyvan, exactly where the interpretations of the formalism were invoked and the function they played in the resulting explanations. A viable form of easy - road nominalism, which is also sensitive to scientific practice, then arises. (shrink)

We explore new connections between the epistemologies of mental rehearsal and suppositional reasoning to offer a novel perspective on skilled behavior and its relationship to practical knowledge. We argue that practical knowledge is "easy" in the sense that, by manifesting one's skills, one has a priori propositional justification for certain beliefs about what one is doing as one does it. This proposal has wider consequences for debates about intentional action and knowledge: first, because agents sometimes act intentionally in epistemically hazardous (...) environments, these justified beliefs do not always rise to the level of (practical) knowledge. Second, practical knowledge is more intimately related to basic knowledge than has been appreciated. Third, an attractive "middle way" opens between the Anscombian tradition of defending a necessary connection between intentional action and practical knowledge and the more recent tradition of explaining away substantive epistemic conditions on intentional action. (shrink)

This paper defends the view that ontological questions (properly understood) are easy—too easy, in fact, to be subjects of substantive and distinctively philosophical debates. They are easy, roughly, in the sense that they may be resolved straightforwardly—generally by a combination of conceptual and empirical enquiries. After briefly outlining the view and some of its virtues, I turn to examine two central lines of objection. The first is that this ‘easy’ approach is itself committed to substantive ontological views, including an implausibly (...) permissive ontology. The second is that it, like neo-Fregean views, relies on transformation rules that are questionable on both logical and ontological grounds. Ultimately, I will argue, the easy view is not easily assailed by either of these routes, and so remains (thus far) a tenable and attractive approach. (shrink)

In _No Easy Answers_, Allan Franklin offers an accurate picture of science to both a general reader and to scholars in the humanities and social sciences who may not have any background in physics. Through the examination of nontechnical case studies, he illustrates the various roles that experiment plays in science. He uses examples of unquestioned success, such as the discoveries of the electron and of three types of neutrino, as well as studies that were dead ends, wrong turns, or (...) just plain mistakes, such as the “fifth force,” a proposed modification of Newton's law of gravity. Franklin argues that science is a reasonable enterprise that provides us with knowledge of the natural world based on valid experimental evidence and reasoned and critical discussion, and he makes clear that it behooves all of us to understand how it works. (shrink)

Although there is already an important discussion regarding social ontology (a first-order investigation about social entities, e.g., social objects, social events, social relations, and social categories), not much attention has been paid to social meta-ontology (a second-order inquiry concerning what it means and how to answer whether there are any such entities). With the intention to contribute towards bringing the latter into the philosophical spotlight, I submit here a brief survey of the meta-ontological issues about two specific kinds of social (...) entities, viz., social and institutional practices. After elaborating on Thomasson’s easy approach to ontology, I argue that it can be extended to account for the existence of those social entities. (shrink)

We have recently proposed a diagnosis of what goes wrong in cases of ‘easy-knowledge.’ Erik Wielenberg argues that there are cases of easy knowledge thatour proposal cannot handle. In this note we reply to Wielenberg, arguing that our proposal does indeed handle his cases.

In this paper, I distinguish between two possible versions of Amie Thomasson’s easy ontology project that differ in virtue of positing atomic or holistic application conditions, and evaluate the strengths of a holistic version over a non-holistic version. In particular, I argue that neither of the recently identified regress or circularity problems are troublesome for the supporter of easy ontology if they adopt a holistic account of application conditions. This is not intended to be a defence of easy ontology from (...) all possible objections, but rather to compare holistic and non-holistic versions of the view. This discussion is also significant in that it serves to highlight two distinct forms of easy ontology, which, I argue, need to be distinguished when assessing the merits of the easy approach in future work. (shrink)

Gleitman and Trueswell’s “The easy words” forms a pair with their earlier paper, “Hard words,” completing a circle in which the authors ask how “easy” words (e.g., concrete nouns) are learned. They take up the hypothesis of “cross‐situational learning,” and argue that accumulating observations actually hinders learning if the mechanism requires holding all exemplars in memory over time. They present an alternative hypothesis, “Propose but Verify,” wherein people use one‐trial learning to confirm or disconfirm their current hypothesis—a mechanism distinctly different (...) from cross‐situational learning. (shrink)

Plausibly, one important part of a good life is doing work that makes a contribution, or a positive difference to the world. In this paper, however, I explore contribution pessimism, the view that people will not always have adequate opportunities for making contributions. I distinguish between three interestingly different and at least initially plausible reasons why this view might be true: in slogan form, things might become too easy, they might become too good, or we might be too late. Now, (...) one response to these problems might be to deliberately attempt to undo them. However, I claim that this solution is intuitively misguided, and argue that explaining this supports a holistic approach to the value of contributions. Finally, I argue that if contribution pessimism is correct, it could provide an explanation of some widely held intuitions about issues in population ethics, with implications about the practical issue of how much priority we should give to addressing risks of human extinction. (shrink)

David Chalmers distinguishes the hard problem of consciousness -- why should a physical system give rise to conscious experiences at all -- with what he calls the easy problems, the explanation of how cognitive systems, including human brains, perform various cognitive functions. He argues that the easy problems are easy because the performance of any function can be explained by specifying a mechanism that performs the function. This article argues that conscious experiences have a role in the performance by human (...) beings of some cognitive functions, that can't be realised by mechanisms of the kind studied by the objective sciences; and that accordingly some of Chalmers’ easy problems will not be fully solved unless and until the hard problem is solved. (shrink)

Existence questions have been topics for heated debates in metaphysics, but this book argues that they can often be answered easily, by trivial inferences from uncontroversial premises. This 'easy' approach to ontology leads to realism about disputed entities, and to the view that metaphysical disputes about existence questions are misguided.

Many people in desperate need of an organ will die on waiting lists for transplantation or face increased morbidity because of their wait. This circumstance is particularly troubling since many viable organs for transplantation go unused when individuals fail to participate in their local organ donation system. In this paper, I consider whether participating in organ transplantation should be considered a form of a rescue of others from the great harms caused by a shortage in transplantable organs. Specifically, I consider (...) whether cadaver organ transplantation is a case of an easy rescue. If so, participation in cadaver organ transplantation will be a duty rather than a supererogatory act.1 This question is important in illuminating individual duties to participate in organ transplantation. Moreover, as I will argue, it has repercussions for community-wide policies for enrolling individuals in transplantation schemes. -/- In the first section of this paper, I tie cadaver organ transplantation to the duty to rescue others from great harm when it is easy to do so. Given the number of persons who will die or be greatly harmed without transplanted organs, the transfer of organs upon death is seemingly similar to other, classical cases of easy rescue. In the second section, I consider objections to this proposal on the ground that cadaver organ transplantation is structurally dissimilar to classical rescue cases, especially given uncertainty over when and to whom organs will be transplanted, if they are transplanted at all. In the third section, I consider the objection that cadaver organ transplantation is a demanding, rather than easy, rescue. While I grant that cadaver organ transplantation will be demanding for some persons, I argue that there remain many cases where it will be an easy rescue. In the final section, I consider the policy implications of my argument. In particular, I argue that understanding cadaver organ transplantation as a duty should shift the debate over opt-out, opt-in, and mandatory choice procedures for participating in organ transplantation upon death. While different systems will be appropriate for different communities, understanding transplantation as a duty in some cases helps to justify an opt-out system. (shrink)

Amie Thomasson has defended a view called Easy Ontology, according to which most ontological questions can be answered straightforwardly using conceptual truths and empirical knowledge. Furthermore, she claims that this deflationary meta-ontology does not commit her to any form of anti-realism. In this paper I identify a problem with Thomasson’s account of quantification, according to which everything we quantify over falls under a sortal. Thomasson’s defence of the easiness of answering ontological questions relies on a certain thesis about the (...) hierarchical order of sortals, but the case for the compatibility of Easy Ontology and realism suggests that this thesis is actually false. (shrink)

Pairs of sentences like the following pose a problem for ontology: (1) Jupiter has four moons. (2) The number of moons of Jupiter is four. (2) is intuitively a trivial paraphrase of (1). And yet while (1) seems ontologically innocent, (2) appears to imply the existence of numbers. Thomas Hofweber proposes that we can resolve the puzzle by recognizing that sentence (2) is syntactically derived from, and has the same meaning as, sentence (1). Despite appearances, the expressions ‘the number of (...) moons of Jupiter’ and ‘four’ do not function semantically as singular terms in (2). Hofweber’s primary evidence for this proposal concerns differences in the focus-related communicative functions of (1) and (2). In this paper I raise several serious problems for Hofweber’s proposal, and for his attempt to support it by appeal to focus-related phenomena. I conclude by offering independent evidence for an alternative, purely pragmatic resolution of the ontological puzzle. (shrink)

Bob Hale has defended a new conception of properties that is broadly Fregean in two key respects. First, like Frege, Hale insists that every property can be defined by an open formula. Second, like Frege, but unlike later definabilists, Hale seeks to justify full impredicative property comprehension. The most innovative part of his defense, we think, is a “definability constraint” that can serve as an implicit definition of the domain of properties. We make this constraint formally precise and prove that (...) it fails to characterize the domain uniquely. Thus, we conclude, there is no easy road to impredicative definabilism. (shrink)

Suppose Ted is in an ordinary house in good viewing conditions and believes red, his table is red, entirely because he sees his table and its color; he also believes not-white, it is false that his table is white and illuminated by a red light, because not-white is entailed by red. The following three claims about this table case clash, but each seems plausible: 1. Ted’s epistemic position is strong enough for him to know red. 2. Ted cannot know not-white (...) on the basis of red. 3. The epistemic closure principle, suitably restricted, is true. Stewart Cohen has called this three-way clash of intuitions the problem of easy knowledge. If we wish to resolve the clash without accepting skepticism, we seem to have two options. According to the hard argument, the best response is to reject 3. The easy argument rejects 2. But there may be a third alternative, the reverse argument, which rejects 1 without ceding a substantial amount of ground to the skeptic. In this essay I criticize recent versions of the reverse argument and the hard argument, thereby lending support to the easy argument. (shrink)

Volume 19, Issue 5, May 2019, Page 64-66.

This empirical study advances the understanding of the theory of investment in human capital by outlining limitations to its applicability in the context of return to education. The study uses the concept of moral hazard to examine circumstances when financial support for education purpose generates less desirable post-graduation incomes. This study explores the relationship between financial support and post-graduation incomes using data from the Survey of Income and Program Participation that is designed to measure the economic situation of individuals. Results (...) suggest that students are less likely to engage in moral hazardous behavior to the degree to which they are older and to the degree to which they receive costlier financial assistance. (shrink)

Volume 20, Issue 9, September 2020, Page W1-W4.

A contra-classical logic is a logic that, over the same language as that of classical logic, validates arguments that are not classically valid. In this paper I investigate whether there is a single, non-trivial logic that exhibits many features of already known contra-classical logics. I show that Mortensen’s three-valued connexive logic _M3V_ is one such logic and, furthermore, that following the example in building _M3V_, that is, putting a suitable conditional on top of the \(\{\sim, \wedge, \vee \}\) -fragment of (...) _LP_, one can get a logic exhibiting even more contra-classical features. (shrink)

Metrics and their weaker forms are used to measure the difference between two data. There are many metrics that are available but not desired by a practitioner. This paper recommends in a plausible reasoning manner an easy-to-understand method to construct desired distance-like measures: to fuse easy-to-obtain pseudo-semi-metrics, pseudo-metrics, or metrics by making full use of well-known t-norms, t-conorms, aggregation operators, and similar operators. The simple reason to do this is that data for a real world problem are sometimes from multiagents. (...) A distance-like notion, called weak interval-valued pseudo-metrics, is defined by using known notions of pseudo-semi-metrics, pseudo-metrics, and metrics; this notion is topologically good and shows precision, flexibility, and compatibility than single pseudo-semi-metrics, pseudo-metrics, or metrics. Propositions and detailed examples are given to illustrate how to fabricate an expected or demanded WIVP-metric in practical problems, and WIVP-metric and its special cases are characterized by using axioms. Moreover, some WIVP-metrics pertinent to quantitative logic theory or interval-valued fuzzy graphs are constructed, and fixed point theorems and common fixed point theorems in weak interval-valued metric spaces are also presented. Topics and strategies for further study are also put forward concretely and clearly. (shrink)

Using graphics, colored diagrams, and illustrations, Everyday Philosophy Made Easy serves as a calm and patient tutor to help you remember, or learn, the basic theories of philosophy and how they are applied in everyday situations.

Several critics have denied value incommensurability – or the claim, roughly, that there is no common measure in terms of which values can be weighed – on the basis of what we might call the argument from easy cases. Although the argument from easy cases is quite popular, what is much less often discussed is what exactly the argument entails – in other words, what sort of further commitments the argument generates. Suppose we grant that easy cases point to the (...) existence of a common measure. How then should we think about this common measure? What is its scope? How widely does it range? I attempt to clarify these questions and in the process evaluate the force of the argument from easy cases. (shrink)

This paper contrasts David Chalmers’s formulation of the easy and hard problems of consciousness with a Cartesian formulation. For Chalmers, the easy problem is making progress in explaining cognitive functions and discovering how they arise from physical processes in the brain. The hard problem is accounting for why these functions are accompanied by conscious experience. For Descartes, the easy problem is knowing the essential features of conscious experience. The hard problem is verifying our knowledge of the mathematical—physical world. While Chalmers (...) admits that consciousness as subjective experience has something irreducible about it, he also presupposes that conscious experience arises from physical processes. These physical processes are posited as objectively real entities given prior to human experience. The knowledge of such entities is assumed without theoretical justification. This assumption arguably invites a reductive materialist theory of mind. I suggest that employing the Cartesian method to articulate the representational theory of knowledge provides an antidote to reductive materialism and illuminates the conceptual gap between physical processes and conscious experience. To illustrate this I contrast Dennett’s heterophenomenology with the Cartesian method of crossing the conceptual gap. I suggest that the hard problem is attaining a knowledge of the extra-mental physical objects, not of conscious experience. (shrink)

It is well known that, in the terminology of Moschovakis, Descriptive set theory (1980), every adequate normed pointclass closed under ∀ω has an effective version of the generalized reduction property (GRP) called the easy uniformization property (EUP). We prove a dual result: every adequate normed pointclass closed under ∃ω has the EUP. Moschovakis was concerned with the descriptive set theory of subsets of Polish topological spaces. We set up a general framework for parts of descriptive set theory and prove results (...) that have as special cases not only the just-mentioned topological results, but also corresponding results concerning the descriptive set theory of classes of structures. Vaught (1973) asked whether the class of cPCδ classes of countable structures has the GRP. It does. A cPC(A) class is the class of all models of a sentence of the form ¬∃K̄φ, where φ is a sentence of L∞ω that is in A and K̄ is a set of relation symbols that is in A. Vaught also asked whether there is any primitive recursively closed set A such that some effective version of the GRP holds for the class of cPC(A) classes of countable structures. There is: The class of cPC(A) classes of countable structures has the EUP if ω ∈ A and A is countable and primitive recursively closed. Those results and some extensions are obtained by first showing that the relevant classes of classes of structures, which Vaught showed normed, are in a suitable sense adequate and closed under ∃ω, and then applying the dual easy uniformization theorem. (shrink)