Combining Texts

All the ideas for 'The Sign of Four', 'English as a Formal Language' and 'Set Theory and related topics (2nd ed)'

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions

18779

'The' is a quantifier, like 'every' and 'a', and does not result in denotation [Montague]

14. Science / C. Induction / 1. Induction

22200

If you eliminate the impossible, the truth will remain, even if it is weird [Conan Doyle]