Combining Texts

Ideas for 'Two Problems of Epistemology', 'Substitutional Classes and Relations' and 'Begriffsschrift'

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

4971	I don't use 'subject' and 'predicate' in my way of representing a judgement [Frege]

4. Formal Logic / C. Predicate Calculus PC / 2. Tools of Predicate Calculus / d. Universal quantifier ∀

17745

For Frege, 'All A's are B's' means that the concept A implies the concept B [Frege, by Walicki]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / p. Axiom of Reducibility

18130

Axiom of Reducibility: there is always a function of the lowest possible order in a given level [Russell, by Bostock]