Results for 'Lachlan Doughney'

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Lachlan Doughney
University of Melbourne
  1. Ayn Rand and Deducing 'Ought' From 'Is'.Lachlan Doughney - 2012 - Journal of Ayn Rand Studies 12 (1):151-168.
    The article discusses how and why philosopher Ayn Rand attempted to deduce an ought conclusion from only is premises. It contends that Rand did attempt to deduce what one ought and ought not do from what is or is not the case. It argues that Rand attempted to provide a universally objective unshakable normative moral claim, that people ought to act in accordance with her value and virtue system.
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  2.  54
    Democratic Legitimacy and the Competence Objection.Lachlan Umbers - 2019 - Res Publica 25 (2):283-293.
    Elitist scepticism of democracy has a venerable history. This paper responds to the latest round of such scepticism—the ‘competence objection’, articulated in recent work by Jason Brennan. Brennan’s charge is that democracy is unjust because it allows uninformed, irrational, and morally unreasonable voters to exercise power over high-stakes political decisions, thus imposing undue risk upon the citizenry. I show that Brennan’s objection admits of two interpretations, and argue that neither can be sustained on close examination. Along the way, I consider (...)
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  3.  22
    Enfranchising the Youth.Lachlan Montgomery Umbers - 2018 - Critical Review of International Social and Political Philosophy:1-24.
  4.  49
    Ω-Categorical, Ω-Stable Structures.G. Cherlin, L. Harrington & A. H. Lachlan - 1985 - Annals of Pure and Applied Logic 28 (2):103-135.
  5.  7
    Preventive Ethics: Expanding the Horizons of Clinical Ethics.Lachlan Forrow, Robert M. Arnold & Lisa S. Parker - 1993 - Journal of Clinical Ethics 4 (4):287.
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  6.  33
    Bayes, Time Perception, and Relativity: The Central Role of Hopelessness.Lachlan Kent, George van Doorn, Jakob Hohwy & Britt Klein - 2019 - Consciousness and Cognition 69:70-80.
  7.  1
    “No Former Travellers Having Attained Such a Height on the Earth’s Surface”: Instruments, Inscriptions, and Bodies in the Himalaya, 1800–1830.Lachlan Fleetwood - 2018 - History of Science 56 (1):3-34.
    East India Company surveyors began gaining access to the high Himalaya in the 1810s, at a time when the mountains were taking on increasing political significance as the northern borderlands of British India. Though never as idiosyncratic as surveyors insisted, these were spaces in which instruments, fieldbook inscriptions, and bodies were all highly prone to failure. The ways surveyors managed these failures demonstrate the social performances required to establish credible knowledge in a world in which the senses were scrambled. The (...)
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  8.  5
    Enfranchising the Youth.Lachlan Montgomery Umbers - 2020 - Critical Review of International Social and Political Philosophy 23 (6):732-755.
  9.  53
    Against Lottocracy.Lachlan Montgomery Umbers - 2018 - European Journal of Political Theory 20 (2):312-334.
    Dissatisfaction with democratic institutions has run high in recent years. Perhaps as a result, political theorists have begun to turn their attention to possible alternative modes of political dec...
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  10.  3
    Responsible Domestic Robotics: Exploring Ethical Implications of Robots in the Home.Lachlan Urquhart, Dominic Reedman-Flint & Natalie Leesakul - forthcoming - Journal of Information, Communication and Ethics in Society.
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  11.  60
    On Strongly Minimal Sets.J. T. Baldwin & A. H. Lachlan - 1971 - Journal of Symbolic Logic 36 (1):79-96.
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  12.  13
    The Green Eggs and Ham Phenomena.Lachlan Forrow - 1994 - Hastings Center Report 24 (6):29-32.
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  13.  15
    Case Studies: When Is Home Care Medically Necessary?Lachlan Forrow, Norman Daniels & James E. Sabin - 1991 - Hastings Center Report 21 (4):36.
  14.  22
    When Is Home Care Medically Necessary?Lachlan Forrow, Norman Daniels & James E. Sabin - 1991 - Hastings Center Report 21 (4):36-38.
  15.  21
    Homebirth and the Future Child.Lachlan de Crespigny & Julian Savulescu - 2014 - Journal of Medical Ethics 40 (12):807-812.
  16.  22
    Distributive Initial Segments of the Degrees of Unsolvability.A. H. Lachlan - 1968 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 14 (30):457-472.
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  17.  22
    The D.R.E. Degrees Are Not Dense.S. Cooper, Leo Harrington, Alistair Lachlan, Steffen Lempp & Robert Soare - 1991 - Annals of Pure and Applied Logic 55 (2):125-151.
    By constructing a maximal incomplete d.r.e. degree, the nondensity of the partial order of the d.r.e. degrees is established. An easy modification yields the nondensity of the n-r.e. degrees and of the ω-r.e. degrees.
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  18.  24
    Then-Rea Enumeration Degrees Are Dense.Alistair H. Lachlan & Richard A. Shore - 1992 - Archive for Mathematical Logic 31 (4):277-285.
  19.  2
    ℵ< Sub> 0-Categorical, ℵ< Sub> 0-Stable Structures.Gregory Cherlin, Leo Harrington & Alistair H. Lachlan - 1985 - Annals of Pure and Applied Logic 28 (2):103-135.
  20.  26
    Bounding Minimal Pairs.A. H. Lachlan - 1979 - Journal of Symbolic Logic 44 (4):626-642.
  21.  20
    A Note on Positive Equivalence Relations.A. H. Lachlan - 1987 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 33 (1):43-46.
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  22.  19
    The Priority Method I.A. H. Lachlans - 1967 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 13 (1-2):1-10.
  23.  2
    Distributive Initial Segments of the Degrees of Unsolvability.A. H. Lachlan - 1968 - Mathematical Logic Quarterly 14 (30):457-472.
  24.  6
    The Priority Method I.A. H. Lachlans - 1967 - Mathematical Logic Quarterly 13 (1‐2):1-10.
  25.  22
    On the Distribution of Lachlan Nonsplitting Bases.S. Barry Cooper, Angsheng Li & Xiaoding Yi - 2002 - Archive for Mathematical Logic 41 (5):455-482.
    We say that a computably enumerable (c.e.) degree b is a Lachlan nonsplitting base (LNB), if there is a computably enumerable degree a such that a > b, and for any c.e. degrees w,v ≤ a, if a ≤ w or; v or; b then either a ≤ w or; b or a ≤ v or; b. In this paper we investigate the relationship between bounding and nonbounding of Lachlan nonsplitting bases and the high /low hierarchy. We prove (...)
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  26.  24
    Some Special Pairs of Σ2 E-Degrees.Seema Ahmad & Alistair H. Lachlan - 1998 - Mathematical Logic Quarterly 44 (4):431-449.
    It is shown that there are incomparable Σ2 e-degrees a, b such that every e-degree strictly less than a is also less than b.
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  27.  3
    A Note on Positive Equivalence Relations.A. H. Lachlan - 1987 - Mathematical Logic Quarterly 33 (1):43-46.
  28.  24
    Vector Spaces and Binary Quantifiers.Michał Krynicki, Alistair Lachlan & Jouko Väänänen - 1984 - Notre Dame Journal of Formal Logic 25 (1):72-78.
  29.  14
    The Continuity of Cupping to 0'.Klaus Ambos-Spies, Alistair H. Lachlan & Robert I. Soare - 1993 - Annals of Pure and Applied Logic 64 (3):195-209.
    It is shown that, if a, b are recursively enumerable degrees such that 0
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  30.  22
    Countable Initial Segments of the Degrees of Unsolvability.A. H. Lachlan & R. Lebeuf - 1976 - Journal of Symbolic Logic 41 (2):289-300.
  31.  7
    Degrees of Recursively Enumerable Sets Which Have No Maximal Supersets.A. H. Lachlan - 1968 - Journal of Symbolic Logic 33 (3):431-443.
  32.  22
    Spectra of Ω-Stable Theories.A. H. Lachlan - 1978 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 24 (9-11):129-139.
  33.  17
    The Impossibility of Finding Relative Complements for Recursively Enumerable Degrees.A. H. Lachlan - 1966 - Journal of Symbolic Logic 31 (3):434-454.
  34.  4
    Preparedness in cultural learning.Cameron Rouse Turner & Lachlan Douglas Walmsley - forthcoming - Synthese:1-20.
    It is clear throughout Cognitive Gadgets Heyes believes the development of cognitive capacities results from the interaction of genes and experience. However, she opposes cognitive instincts theorists to her own view that uniquely human capacities are cognitive gadgets. Instinct theorists believe that cognitive capacities are substantially produced by selection, with the environment playing a triggering role. Heyes’s position is that humans have similar general learning capacities to those present across taxa, and that sophisticated human cognition is substantially created by our (...)
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  35.  10
    Spectra of Ω‐Stable Theories.A. H. Lachlan - 1978 - Mathematical Logic Quarterly 24 (9‐11):129-139.
  36.  23
    Standard Classes of Recursively Enumerable Sets.A. H. Lachlan - 1964 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 10 (2-3):23-42.
  37. Empirical Research in Medical Ethics: An Introduction.Robert M. Arnold & Lachlan Forrow - 1993 - Theoretical Medicine and Bioethics 14 (3):195-196.
     
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  38.  39
    Lachlan A. H.. A Note on Thomason's Refined Structures for Tense Logics. Theoria, Vol. 40, Pp. 117–120.Fine Kit. Some Connections Between Elementary and Modal Logic. Proceedings of the Third Scandinavian Logic Symposium, Edited by Ranger Stig, Studies in Logic and the Foundations of Mathematics, Vol. 82, North-Holland Publishing Company, Amsterdam and Oxford, and American Elsevier Publishing Company, Inc., New York, 1975, Pp. 1–14.Goldblatt R. I. And Thomason S. K.. Axiomatic Classes in Propositional Modal Logic. Algebra and Logic, Papers From the 1974 Summer Research Institute of the Australian Mathematical Society, Monash University, Australia, Edited by Crossley J. N., Lecture Notes in Mathematics, Vol. 450, Springer-Verlag, Berlin, Heidelberg, and New York, 1975, Pp. 163–173.Goldblatt R. I.. First-Order Definability in Modal Logic. [REVIEW]Robert A. Bull - 1982 - Journal of Symbolic Logic 47 (2):440-445.
  39. Folk, Theory, and Feeling: What Attention Is.L. Doughney - 2013 - Dissertation, La Trobe University
    In this thesis three independent answers to the question ‘what is attention?’ are provided. Each answer is a description of attention given through one of the perspectives that people have on the mental phenomenon. The first answer is the common-sense answer to the question, and is an account of the folk psychology of attention. The understanding of attention put forward here is of attention as a limited, divisible resource that is used in mental acts. The second answer is the empirical (...)
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  40. Living Off Immoral Earnings: An Ethical Critique of the Victorian Poker Machine Partnership.J. Doughney - 2004 - Australian Journal of Professional and Applied Ethics 6 (1):20-35.
     
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  41. Lachlan Forrow, Robert M. Arnold and Joel Frader.Preparing Competent Professionals - 1991 - Journal of Medicine and Philosophy 16:93-112.
     
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  42.  7
    Finite Homogeneous 3‐Graphs.Alistair H. Lachlan & Allyson Tripp - 1995 - Mathematical Logic Quarterly 41 (3):287-306.
  43.  20
    Some Notions of Reducibility and Productiveness.A. H. Lachlan - 1965 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 11 (1):17-44.
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  44.  31
    Ethical Language and Decision-Making for Prenatally Diagnosed Lethal Malformations.Dominic Wilkinson, Lachlan De Crespigny & Vicki Xafis - unknown
    In clinical practice, and in the medical literature, severe congenital malformations such as trisomy 18, anencephaly, and renal agenesis are frequently referred to as ‘lethal’ or as ‘incompatible with life’. However, there is no agreement about a definition of lethal malformations, nor which conditions should be included in this category. Review of outcomes for malformations commonly designated ‘lethal’ reveals that prolonged survival is possible, even if rare. This article analyses the concept of lethal malformations and compares it to the problematic (...)
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  45.  66
    On Lachlan’s Major Sub-Degree Problem.S. Barry Cooper & Angsheng Li - 2008 - Archive for Mathematical Logic 47 (4):341-434.
    The Major Sub-degree Problem of A. H. Lachlan (first posed in 1967) has become a long-standing open question concerning the structure of the computably enumerable (c.e.) degrees. Its solution has important implications for Turing definability and for the ongoing programme of fully characterising the theory of the c.e. Turing degrees. A c.e. degree a is a major subdegree of a c.e. degree b > a if for any c.e. degree x, ${{\bf 0' = b \lor x}}$ if and only (...)
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  46.  13
    Structures Coordinatized by Indiscernible Sets.A. H. Lachlan - 1987 - Annals of Pure and Applied Logic 34 (3):245-273.
  47.  13
    Some Notions of Reducibility and Productiveness.A. H. Lachlan - 1965 - Mathematical Logic Quarterly 11 (1):17-44.
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  48.  17
    A Note on Universal Sets.A. H. Lachlan - 1966 - Journal of Symbolic Logic 31 (4):573-574.
    In this note is proved the following:Theorem.Iƒ A × B is universal and one oƒ A, B is r.e. then one of A, B is universal.Letα, τbe 1-argument recursive functions such thatxgoes to, τ) is a map of the natural numbers onto all ordered pairs of natural numbers. A set A of natural numbers is calleduniversalif every r.e. set is reducible to A; A × B is calleduniversalif the set.
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  49.  31
    On the Indexing of Classes of Recursively Enumerable Sets.A. H. Lachlan - 1966 - Journal of Symbolic Logic 31 (1):10-22.
  50.  26
    On Recursive Enumeration Without Repetition.A. H. Lachlan - 1965 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 11 (3):209-220.
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