11 ideas
9540 | A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0 [Hughes/Cresswell] |
9541 | The Law of Transposition says (P→Q) → (¬Q→¬P) [Hughes/Cresswell] |
9543 | The rules preserve validity from the axioms, so no thesis negates any other thesis [Hughes/Cresswell] |
9544 | A system is 'weakly' complete if all wffs are derivable, and 'strongly' if theses are maximised [Hughes/Cresswell] |
8851 | Coherentists say that regress problems are assuming 'linear' justification [Williams,M] |
8849 | Traditional foundationalism is radically internalist [Williams,M] |
8853 | Basic judgements are immune from error because they have no content [Williams,M] |
8855 | Sensory experience may be fixed, but it can still be misdescribed [Williams,M] |
8852 | In the context of scepticism, externalism does not seem to be an option [Williams,M] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |