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Single Idea 12268
[filed under theme 2. Reason / B. Laws of Thought / 3. Non-Contradiction
]
Full Idea
Antisthenes said that contradiction is impossible.
Gist of Idea
Contradiction is impossible
Source
report of Antisthenes (Ath) (fragments/reports [c.405 BCE]) by Aristotle - Topics 104b21
Book Ref
Aristotle: 'Posterior Analytics and Topica', ed/tr. Tredennick,H/Forster,ES [Harvard 1960], p.301
A Reaction
Aristotle is giving an example of a 'thesis'. It should be taken seriously if a philosopher proposes it, but dismissed as rubbish if anyone else proposes it! No context is given for the remark.
The
22 ideas
with the same theme
[a proposition is claimed to be both true and false]:
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12268
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Contradiction is impossible
[Antisthenes (I), by Aristotle]
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23917
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Contrary statements can both be reasonable, if they are meant in two different ways
[Aristotle]
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6561
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A thing cannot be both in and not-in the same thing (at a given time)
[Aristotle]
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11281
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We cannot say that one thing both is and is not a man
[Aristotle]
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1602
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For Aristotle predication is regulated by Non-Contradiction, because underlying stability is essential
[Roochnik on Aristotle]
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1601
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The most certain basic principle is that contradictories can't be true at the same time
[Aristotle]
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11282
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Aristotle does not take the principle of non-contradiction for granted
[Aristotle, by Politis]
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9108
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From an impossibility anything follows
[William of Ockham]
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15616
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If truth is just non-contradiction, we must take care that our basic concepts aren't contradictory
[Hegel]
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21983
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Being and nothing are the same and not the same, which is the identity of identity and non-identity
[Hegel]
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21985
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The so-called world is filled with contradiction
[Hegel]
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14787
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Self-contradiction doesn't reveal impossibility; it is inductive impossibility which reveals self-contradiction
[Peirce]
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4531
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Our inability to both affirm and deny a single thing is merely an inability, not a 'necessity'
[Nietzsche]
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22642
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Man has an intense natural interest in the consistency of his own thinking
[James]
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17632
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Non-contradiction was learned from instances, and then found to be indubitable
[Russell]
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6566
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The problem is to explain the role of contradiction in social life
[Wittgenstein]
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9023
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If you say that a contradiction is true, you change the meaning of 'not', and so change the subject
[Quine]
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6564
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To affirm 'p and not-p' is to have mislearned 'and' or 'not'
[Quine]
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9123
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Someone standing in a doorway seems to be both in and not-in the room
[Priest,G, by Sorensen]
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4633
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You cannot rationally deny the principle of non-contradiction, because all reasoning requires it
[Baggini /Fosl]
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6565
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The law of noncontradiction makes the distinction between asserting something and denying it
[Fogelin]
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19656
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Non-contradiction is unjustified, so it only reveals a fact about thinking, not about reality?
[Meillassoux]
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