4 ideas
3338 | Numbers have been defined in terms of 'successors' to the concept of 'zero' [Peano, by Blackburn] |
5897 | 0 is a non-successor number, all successors are numbers, successors can't duplicate, if P(n) and P(n+1) then P(all-n) [Peano, by Flew] |
3400 | Things must have parts to intermingle [Gassendi] |
7667 | There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin] |