Combining Texts

All the ideas for '', 'Mathematical Logic (revised)' and 'Reply to First Objections'

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9 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

11211

If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

11212

The sense of a connective comes from primitively obvious rules of inference [Rumfitt]

11210

Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

12221

'Corner quotes' (quasi-quotation) designate 'whatever these terms designate' [Quine]

5. Theory of Logic / F. Referring in Logic / 1. Naming / f. Names eliminated

19321

We might do without names, by converting them into predicates [Quine, by Kirkham]

15. Nature of Minds / B. Features of Minds / 2. Unconscious Mind

16634

I can't be unaware of anything which is in me [Descartes]

19. Language / F. Communication / 3. Denial

11214

We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]

23. Ethics / F. Existentialism / 5. Existence-Essence

3635	Essence must be known before we discuss existence [Descartes]

28. God / B. Proving God / 3. Proofs of Evidence / a. Cosmological Proof

3634	We can't prove a first cause from our inability to grasp infinity [Descartes]