Type Book
Date 2011
Pages 194
Series Trends in Logic (31)
Tags nonfiction, logic, paradoxes

Paradoxes

1: Introduction

Lukowski divides paradoxes into four classes:

  1. Paradoxes of Wrong Intuition
  2. Paradoxes of Ambiguity
  3. Paradoxes of Self-Reference
  4. Ontological Paradoxes

2: Paradoxes of Wrong Intuition

These are paradoxes that arise when logical reasoning yields surprising, counter-intuitive results.

2.1: Bottle Imp Paradox (Stevenson's Bottle)

Robert Louis Stevenson's 1891 story The Bottle Imp posits a bottle containing an imp that grants wishes. The bottle can only be sold to another at a loss, and if you die while owning it, you go to hell. The paradox is that no one should be willing to buy it for a penny, and knowing this, no one should be willing to buy it for two cents, either. By induction, no one should be willing to buy it for any price, although intuitively we feel like if the price is high enough, it should be safer to buy.

2.2: Newcomb's Paradox

Lukowski 'solves' Newcomb's problem by declaring that the solution is to take only one box, because the flow of causation simply doesn't match the flow of time. Taking two boxes and finding cash in both is not an available option, so there is no conflict.

Many words have been spent on this problem that amount to attempts to fool the oracle. This, I think, is the sort of thing Lukowski means when he says that "Newcomb's problem really touches on human frailties: greed, underestimating other people, tendency to cheat, etc."

2.3: Paradox of Common Birthday

On the birthday problem.

2.4: Paradox of Approximation and Paradox of the Equator

Two unintuitive results from geometry.

2.5: Horses' Paradox

An improper application of inductive reasoning yields an absurd result.

2.6: Hempel's Paradox (Raven, Confirmation)

If seeing a black raven supports the claim that all ravens are black, then so does seeing any non-black non-raven, such as a white shoe.

2.7: Paradoxes of Infinity

2.7.1: Aristotelian Circles Paradox

On the paradox of Aristotle's Wheel.

2.7.2: Holy Trinity Paradox

Lukowski constructs some sequences that have relations similar to those ascribed to the holy trinity.

What is more, we have demonstrated that the concept of Trinity can be conceived of not only in theology but also in the most precise of sciences that is available for man, i.e., mathematics.

Review by Weber

Zach Weber damns the book with faint praise, writing that "If Łukowski’s monograph were the only book to collect together most of the well-known paradoxes, then there would be much to recommend it" (Weber, 2012). This sums up my thoughts, so far.

Bibliography

Weber, Z. (2012). Piotr łukowski, paradoxes, tr. Marek gensler. Reviewed by [Review of Piotr łukowski, paradoxes, tr. Marek gensler. Reviewed by, by P. Łukowski]. Philosophy in Review, 32(4), 307–309.
Name Role
Marek Gensler Translator
Piotr Łukowski Author

Contents

1: Introduction 1
    References 3
2: Paradoxes of Wrong Intuition 5
    2.1: Bottle Imp Paradox (Stevenson's Bottle), or the Unintuitive Character of a Conclusion Following a Sufficient Multiplication of a Simple Reasoning 5
    2.2: Newcomb's Paradox, or the Unintuitive Character of a Conclusion Drawn from Premises with Non-intuitive Assumption 7
    2.3: Paradox of Common Birthday, or the Unintuitive Character of Some Results in Probability Calculus 11
    2.4: Paradox of Approximation and Paradox of the Equator, or the Unintuitive Character of Some Results in Euclidean Geometry 13
    2.5: Horses' Paradox, or the Intuitive Character of an Erroneous Application of Mathematical Induction 15
    2.6: Hempel's Paradox (Raven, Confirmation), or the Unintuitive Character of Some Inductive Reasoning Results 16
    2.7: Paradoxes of Infinity, or Unintuitive Character of Some Results Obtained in Set Theory 19
        2.7.1: Aristotelian Circles Paradox, or the Definition of an Infinite Set 19
        2.7.2: Holy Trinity Paradox, or Application of the Definition of Infinite Set in Theology 27
    2.8: Fitch's Paradox, or the Conflict of Two Intuitions 32
    References 35
3: Paradoxes of Ambiguity 37
    3.1: Protagoras' (Law Teacher's) Paradox 37
    3.2: Electra's (the Veiled One's) Paradox and Other Equivocations 48
    3.3: The Horny One's Paradox 51
    3.4: Nameless Club Paradox 52
    3.5: Paradox of a Stone, or an Attempt at Disproving God's Omnipotence 54
    References 73
4: Paradoxes of Self-Reference 75
    4.1: Möbius Ribbon and Klein Bottle, or Self-Reference in Mathematics 75
    4.2: Great Semantical Paradoxes 80
        4.2.1: Liar Antinomy 80
        4.2.2: Buridan's Paradox 106
        4.2.3: Generalized Form of Liar Antinomy 108
        4.2.4: Curry's Paradox 109
    4.3: Other Semantic Paradoxes 110
        4.3.1: Barber's Antinomy 111
        4.3.2: Richard's and Berry's Antinomies 113
        4.3.3: Grelling's Antinomy (Vox Non Appellans Se) 118
    4.4: Unexpected Examination (Hangman's) Paradox, or Self-Reflexive Reasoning 119
    4.5: Crocodile's Paradox, or Baron Münchhausen Fallacy 124
    References 128
5: Ontological Paradoxes 131
    5.1: Paradoxes of Difference - Paradox of a Heap 131
        5.1.1: What is Vagueness? 141
        5.1.2: Proposals Substituting Preciseness for Vagueness 151
        5.1.3: Vagueness Respecting Proposals 166
    5.2: Paradoxes of Change 171
        5.2.1: Paradox of the Moment of Death (Change of State Paradox) 171
        5.2.2: Paradoxes of Identity 172
        5.2.3: The Paradoxes of Motion 175
    5.3: Diagnosis of Paradoxes of Vagueness and Change 181
    References 185
Names Index 189
Subject Index 193