3 ideas
23248 | Early empiricists said reason was just a useless concept introduced by philosophers [Galen, by Frede,M] |
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
17447 | Parsons says counting is tagging as first, second, third..., and converting the last to a cardinal [Parsons,C, by Heck] |