Combining Texts

Ideas for 'fragments/reports', 'What are Sets and What are they For?' and 'A Structural Account of Mathematics'

expand these ideas     |    start again     |     choose another area for these texts

display all the ideas for this combination of texts

---

5 ideas

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

9561	The mathematics of relations is entirely covered by ordered pairs [Chihara]

5. Theory of Logic / G. Quantification / 6. Plural Quantification

14234

If you only refer to objects one at a time, you need sets in order to refer to a plurality [Oliver/Smiley]

14237

We can use plural language to refer to the set theory domain, to avoid calling it a 'set' [Oliver/Smiley]

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

14245

Logical truths are true no matter what exists - but predicate calculus insists that something exists [Oliver/Smiley]

5. Theory of Logic / K. Features of Logics / 2. Consistency

9552	Sentences are consistent if they can all be true; for Frege it is that no contradiction can be deduced [Chihara]