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Hugh Lehman [87]Hugh S. Lehman [2]Hugh R. K. Lehman [1]
  1.  32
    (1 other version)Criticism and the Growth of Knowledge.Hugh Lehman - 1972 - Philosophy of Science 39 (1):92-95.
  2. Functional explanation in biology.Hugh Lehman - 1965 - Philosophy of Science 32 (1):1-20.
    This paper is concerned with the problem of giving a correct analysis of function statements as they are used in biology. Examples of such statements are (1) The function of the myelin sheath is to insulate the nerve fiber and (2) The function of chlorophyll is to enable photosynthesis to take place. After criticizing analyses of such statements developed by Braithwaite, Nagel and Hempel an analysis is presented by the author. Finally the question of whether function statements are explanations is (...)
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  3.  98
    (1 other version)Ethics and farm animal welfare.J. F. Hurnik & Hugh Lehman - 1988 - Journal of Agricultural and Environmental Ethics 1 (4):305-318.
    In this paper the authors argue that ethical considerations are relevant for evaluating animal production systems and that in consequence agrologists should seriously consider the arguments of animal welfare supporters. Furthermore, the authors point out the ethical basis for some (though not all) of the conclusions proposed by supporters of animal welfare. In consequence it is necessary to determine the nature of animal welfare and methods of evaluating the welfare of animals and to recognize when production systems fail to satisfy (...)
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  4. Are biological species real?Hugh Lehman - 1967 - Philosophy of Science 34 (2):157-167.
    Difficulties with the typological concept of species led biologists to reject the "typological" presupposition of an archetype which is manifest in each member of a species. The resulting concept of species, which is here called the phenotypic species concept, is considered as implying that biological species are not real. Modern population thinking has given rise to the concept of a species as a gene-pool. This modern concept is contrasted here with the phenotypic concept in light of some general criteria for (...)
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  5.  17
    (1 other version)Agricultural Biotechnology and the Environment: Science Policy and Social Issues.Sheldon Krimsky, Roger P. Wrubel & Hugh Lehman - 1998 - Journal of Agricultural and Environmental Ethics 11 (1):66-67.
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  6.  16
    Rationality and ethics in agriculture.Hugh Lehman - 1995 - Moscow, Idaho: University of Idaho Press.
    Distributed by the University of Nebraska Press for the University of Idaho Press Explores contemporary social criticism of agriculture by analyzing assumptions regarding matters such as animal welfare, biotechnology, ethics and human nature. Dr. Lehman carefully investigates the various meanings and criteria of "rational" without presupposing prior knowledge of philosophy, making the material accessible to students, agriculture scientists, and members of the public concerned with agriculture.
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  7.  27
    Introduction to the philosophy of mathematics.Hugh Lehman - 1979 - Totowa, N.J.: Rowman & Littlefield.
  8. Assessment of GM crops in commercial agriculture.E. Ann Clark & Hugh Lehman - 2001 - Journal of Agricultural and Environmental Ethics 14 (1):3-28.
    The caliber of recent discourse regarding geneticallymodified organisms (GMOs) has suffered from a lack of consensuson terminology, from the scarcity of evidence upon which toassess risk to health and to the environment, and from valuedifferences between proponents and opponents of GMOs. Towardsaddressing these issues, we present the thesis that GM should bedefined as the forcible insertion of DNA into a host genome,irrespective of the source of the DNA, and exclusive ofconventional or mutation breeding.Some defenders of the commercial use of GMOs (...)
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  9. Statistical explanation.Hugh Lehman - 1972 - Philosophy of Science 39 (4):500-506.
    Wesley Salmon has advanced a new model of explanations of particular facts which requires that the explanans contain laws. The laws used in explanations (according to this model) are of the form P(A· C1,B)=p1... P(A· Cn,B)=pn. A condition imposed by Salmon on these laws is that the reference classes, i.e. A· C1... A· Cn, be homogenous with reference to the property B. A reference class A is homogenous with reference to a property B if every property which determines a place (...)
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  10.  42
    On the Form of Explanation in Evolutionary Theory.Hugh Lehman - 1966 - Theoria 32 (1):14-24.
  11. (1 other version)On the moral acceptability of killing animals.Hugh Lehman - 1988 - Journal of Agricultural and Environmental Ethics 1 (2):155-162.
    According to a rights view it is acceptable to kill animals if they are innocent threats or shields or are in a lifeboat situation. However, according to advocates of such a view, our practices of killing animals for food or scientific research may be morally unacceptable. In this paper we argue that, even if we grant the basic assumptions of a rights view, a good deal of killing of animals for food and scientific research continues to be morally acceptable.
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  12.  86
    (1 other version)Teleological explanation in biology.Hugh S. Lehman - 1964 - British Journal for the Philosophy of Science 15 (60):327.
  13.  20
    Apq library of philosophy.Brian Ellis, Hugh Lehman, Nicholas Rescher & John Leslie - 1977 - Verifiche: Rivista Trimestrale di Scienze Umane 6 (2).
  14.  91
    Are mathematical existence propositions unique ?Hugh Lehman - 1973 - Philosophia Mathematica (1):88-91.
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  15.  32
    Queer arithmetics.Hugh Lehman - 1970 - Australasian Journal of Philosophy 48 (1):31-43.
  16.  43
    Editorial.Frank Hurnik & Hugh Lehman - 1988 - Journal of Agricultural and Environmental Ethics 1 (1):1-4.
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  17.  37
    Editorial announcement.Frank Hurnik & Hugh Lehman - 1999 - Journal of Agricultural and Environmental Ethics 11 (3):165-166.
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  18.  25
    (1 other version)Ethical choice and pervasive technology.Frank Hurnik & Hugh Lehman - 1989 - Journal of Agricultural and Environmental Ethics 2 (3):179-182.
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  19.  27
    (1 other version)Producers and animal welfare.Frank Hurnik & Hugh Lehman - 1989 - Journal of Agricultural and Environmental Ethics 2 (4):261-262.
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  20.  18
    Animals and Why They Matter Mary Midgley Athens, GA: University of Georgia Press, 1984. Pp. 158.Hugh Lehman - 1986 - Dialogue 25 (3):600-.
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  21. An Examination of Imre Lakatos' Philosophy of Mathematics.Hugh Lehman - 1980 - Philosophical Forum 12 (1):33.
     
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  22. Approaches to the Explanation of Behavior.Hugh Lehman - 1972 - Philosophical Forum 3 (2):173.
     
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  23.  21
    Are value judgements inherent in scientific assessment?Hugh Lehman - forthcoming - Journal of Agricultural and Environmental Ethics.
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  24. Classification and explanation in biology.Hugh Lehman - 1971 - Taxon 20:257-68.
  25.  55
    Clarifying the definition ofsustainable agriculture.Hugh Lehman, E. Ann Clark & Stephan F. Weise - 1993 - Journal of Agricultural and Environmental Ethics 6 (2):127-143.
    A number of distinct definitions ofsustainable agriculture have been proposed. In this paper we criticize two such definitions, primarily for conflating sustainability with other objectives such as economic viability and ecological integrity. Finally, we propose and defend a definition which avoids our objections to the other definitions.
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  26.  25
    Editorial.Hugh Lehman & Frank Hurnik - 1988 - Journal of Agricultural and Environmental Ethics 1 (4):1-4.
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  27.  45
    Editorial.Hugh Lehman & Frank Hurnik - 1989 - Journal of Agricultural and Environmental Ethics 2 (1):1-4.
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  28.  47
    Ecosystem health as a moral requirement.Hugh Lehman - 2000 - Journal of Agricultural and Environmental Ethics 12 (3):305-317.
    Some writers have suggested that it would be desirable to assess the state of the Earth''senvironments by making use of a concept of ecosystem health. We subject this suggestion toscrutiny first by calling attention to obscurities inthe notion of an ecosystem and then by callingattention to obscurities in and objections to someviews about ecosystem health. Finally, we note, thateven if ecosystem health can be adequately clarified, there are reasons for saying that whetherwe are morally obligated to protect the health ofsome (...)
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  29.  42
    Equal pay for equal work in the third world.Hugh Lehman - 1985 - Journal of Business Ethics 4 (6):487 - 491.
    If the principle of equal pay for work of equal value is valid, then the practice of paying workers in third-world countries at a lower rate than workers doing the same jobs in industrialized nations is unjust. Recently Henry Shue argued that the principle is not valid. In this paper I criticize Shue's arguments and offer additional arguments in support of his conclusion.
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  30.  12
    Editorial: Should farming be restricted to professionals?Hugh Lehman & Frank Hurnik - 1989 - Journal of Agricultural Ethics 2 (2):83-86.
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  31.  44
    Food animal well-being.Hugh Lehman - 1994 - Journal of Agricultural and Environmental Ethics 7 (1):125-131.
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  32.  41
    Food ethics, edited by Ben Mepham.Hugh Lehman - 1997 - Journal of Agricultural and Environmental Ethics 10 (2):203-205.
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  33. Food Ethics.Hugh Lehman - 0203 - Journal of Agricultural and Environmental Ethics.
     
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  34.  51
    Intuitionism and Platonism on Infinite Totalities.Hugh Lehman - 1983 - Idealistic Studies 13 (3):190-198.
    Mathematical objects, according to intuitionists, exist only in the mind of the mathematician. Such objects are, in reality, structures which are created by the mathematician. Creation of such structures is limited by the capability of the mind to generate sequences of objects. Knowledge of mathematical objects or structures is possible through the mind’s capability to survey or inspect the structures that it has created. The platonist, contrary to the intuitionist, maintains that mathematical objects have an existence which is not causally (...)
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  35. Is Mathematics a Theoretical Juice Extractor?Hugh Lehman - 1974 - Philosophical Forum 6 (2):237.
     
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  36. (1 other version)Lynne Rudder Baker, Saving Belief: A Critique of Physicalism Reviewed by.Hugh Lehman - 1990 - Philosophy in Review 10 (6):219-222.
  37.  60
    Mathematical Proofs, Gaps and Postulationism.Hugh Lehman - 1984 - The Monist 67 (1):108-114.
    In a recent paper, the mathematician Harold Edwards claimed that Euler’s alleged proof, that Fermat’s last theorem is true for the case n = 3, is flawed. Fermat’s last theorem is the conjecture that there are no positive integers x, y, z, or n, such that n is greater than two and such that xn + yn = zn. In this paper we shall first briefly explain the specific flaw to which Edwards called attention. After that we briefly explain the (...)
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  38. Robert C. Colodny , "The Nature and Function of Scientific Theories, Essays in Contemporary Science and Philosophy".Hugh Lehman - 1974 - Theory and Decision 4 (3/4):385.
     
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  39. R. K. Merton's concepts of function and functionalism.Hugh R. K. Lehman - 1966 - Inquiry: An Interdisciplinary Journal of Philosophy 9 (1-4):274 – 283.
    In this paper an attempt is made to provide an analysis of the meaning of the term function and related terms as they are used by R. K. Merton in the first chapter of his book Social Theory and Social Structure. Several problems are suggested which must be solved if statements about functions are to be considered scientifically adequate. Secondly the term functionalism is defined and several of Merton's functionalist explanations of social phenomena are stated and criticized.
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  40.  39
    Reply to Munson.Hugh Lehman - 1970 - Philosophy of Science 37 (1):125-130.
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  41.  27
    The Case for Animal Rights.Hugh Lehman - 1984 - Dialogue 23 (4):669-676.
  42.  9
    The Nature of Mathematical Knowledge Philip Kitcher New York: Oxford University Press, 1983. Pp. 287. $34.95.Hugh Lehman - 1985 - Dialogue 24 (3):557-.
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  43.  6
    The Triumph of the Darwinian MethodMichael T. Ghiselin.Hugh Lehman - 1970 - Isis 61 (1):144-145.
  44.  41
    Farming salmon ethically.E. A. Needham & Hugh Lehman - 1991 - Journal of Agricultural and Environmental Ethics 4 (1):78-81.
    Salmon farming is a rapidly expanding industry. In order for it to develop in an ethical manner, many ethical issues must be confronted. Among these are questions regarding the quality of life of salmon on farms. To develop reasonable answers to these questions considerable thought must be devoted to developing appropriate standards of care for salmon. If these questions are not addressed the results could be bad both for salmon and for salmon farmers.
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  45.  50
    Book reviews. [REVIEW]Chris Findlay, E. G. Beauchamp, Paul B. Siegel & Hugh Lehman - 1996 - Journal of Agricultural and Environmental Ethics 9 (1):83-92.
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  46.  16
    Book Review:Scientific Explanation Nicholas Rescher. [REVIEW]Hugh Lehman - 1972 - Philosophy of Science 39 (2):272-.
  47.  35
    Book Review:Mathematics, Matter and Method. Philosophical Papers Hilary Putnam; Mind, Language and Reality. Philosophical Papers Hilary Putnam. [REVIEW]Hugh Lehman - 1978 - Philosophy of Science 45 (1):151-.
  48.  34
    Britt Bailey and Marc lappé (eds.), Engineering the farm: Ethical and social aspects of agricultural biotechnology. [REVIEW]Hugh Lehman - 2003 - Journal of Agricultural and Environmental Ethics 16 (5):513-516.
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  49.  39
    Book review. [REVIEW]Hugh Lehman - 1989 - Journal of Agricultural and Environmental Ethics 2 (1):78-82.
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  50.  33
    Book reviews. [REVIEW]Hugh Lehman - 1997 - Journal of Agricultural and Environmental Ethics 10 (1):83-92.
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