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Single Idea 12194

[filed under theme 5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction ]

Full Idea

Overt contradictions include formal contradictions of form 'B and not B', but I also take them to include 'This is red all over and green all over' and 'This is red and not coloured'.

Gist of Idea

Contradictions include 'This is red and not coloured', as well as the formal 'B and not-B'

Source

Ian Rumfitt (Logical Necessity [2010], Intro)

Book Ref

'Modality', ed/tr. Hale,B/Hoffman,A [OUP 2010], p.36

The 5 ideas with the same theme [when two statements are in logical conflict]:

10121 Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]
2111 Falsehood involves a contradiction, and truth is contradictory of falsehood [Leibniz]
18736 Contradiction is between two rules, not between rule and reality [Wittgenstein]
23496 Two colours in the same place is ruled out by the logical structure of colour [Wittgenstein]
12194 Contradictions include 'This is red and not coloured', as well as the formal 'B and not-B' [Rumfitt]