Combining Texts

All the ideas for 'The Case against Closure (and reply)', 'Barcan Formulae' and 'Protocol Sentences'

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10 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
15380 Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem]
13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / c. Knowledge closure
19544 Closure says if you know P, and also know P implies Q, then you must know Q [Dretske]
19545 We needn't regret the implications of our regrets; regretting drinking too much implies the past is real [Dretske]
19546 Knowing by visual perception is not the same as knowing by implication [Dretske]
19547 Reasons for believing P may not transmit to its implication, Q [Dretske]
19548 The only way to preserve our homely truths is to abandon closure [Dretske]
19549 P may imply Q, but evidence for P doesn't imply evidence for Q, so closure fails [Dretske]
19550 We know past events by memory, but we don't know the past is real (an implication) by memory [Dretske]
13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / f. Foundationalism critique
10486 If we are rebuilding our ship at sea, we should jettison some cargo [Boolos on Neurath]
8485 We must always rebuild our ship on the open sea; we can't reconstruct it properly in dry-dock [Neurath]