Combining Texts

Ideas for 'Thinking About Mathematics', 'Contingent Identity' and 'Beginning Logic'

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

display all the ideas for this combination of texts

---

2 ideas

5. Theory of Logic / B. Logical Consequence / 8. Material Implication

9520	The paradoxes of material implication are P |- Q → P, and ¬P |- P → Q [Lemmon]

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

8729	Intuitionists deny excluded middle, because it is committed to transcendent truth or objects [Shapiro]