Combining Texts

Ideas for 'works', 'Later Letters to Dedekind' and 'The Justification of Deduction'

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

display all the ideas for this combination of texts

---

1 idea

5. Theory of Logic / B. Logical Consequence / 2. Types of Consequence

19058

Syntactic consequence is positive, for validity; semantic version is negative, with counterexamples [Dummett]