Combining Texts

All the ideas for 'fragments/reports', 'Conditionals' and 'Intro to I: Classical Logic'

expand these ideas     |    start again     |     specify just one area for these texts

---

6 ideas

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

9463	Classical logic is bivalent, has excluded middle, and only quantifies over existent objects [Jacquette]

10. Modality / B. Possibility / 8. Conditionals / a. Conditionals

13768

Validity can preserve certainty in mathematics, but conditionals about contingents are another matter [Edgington]

10. Modality / B. Possibility / 8. Conditionals / b. Types of conditional

13770

There are many different conditional mental states, and different conditional speech acts [Edgington]

10. Modality / B. Possibility / 8. Conditionals / c. Truth-function conditionals

13764

Are conditionals truth-functional - do the truth values of A and B determine the truth value of 'If A, B'? [Edgington]

13765

'If A,B' must entail ¬(A & ¬B); otherwise we could have A true, B false, and If A,B true, invalidating modus ponens [Edgington]

20. Action / B. Preliminaries of Action / 2. Willed Action / d. Weakness of will

22511

Some reasonings are stronger than we are [Philolaus]