Combining Philosophers

Ideas for Ralph Waldo Emerson, Volker Halbach and Keith Hossack

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4 ideas

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and

23628

The connective 'and' can have an order-sensitive meaning, as 'and then' [Hossack]

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

23627

'Before' and 'after' are not two relations, but one relation with two orders [Hossack]

5. Theory of Logic / E. Structures of Logic / 7. Predicates in Logic

15651

Instead of saying x has a property, we can say a formula is true of x - as long as we have 'true' [Halbach]

5. Theory of Logic / E. Structures of Logic / 8. Theories in Logic

16310

A theory is some formulae and all of their consequences [Halbach]