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Ideas for 'Parmenides', 'Conditionals' and 'An Inquiry into Meaning and Truth'

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6 ideas

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

14352

'¬', '&', and 'v' are truth functions: the truth of the compound is fixed by the truth of the components [Jackson]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / e. or

16480

A disjunction expresses indecision [Russell]

16479

'Or' expresses hesitation, in a dog at a crossroads, or birds risking grabbing crumbs [Russell]

16481

'Or' expresses a mental state, not something about the world [Russell]

16487

Maybe the 'or' used to describe mental states is not the 'or' of logic [Russell]

16483

Disjunction may also arise in practice if there is imperfect memory. [Russell]