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] |
14305 | In the truth-functional account a burnt-up match was soluble because it never entered water [Carnap] |
19699 | A Gettier case is a belief which is true, and its fallible justification involves some luck [Hetherington] |