4 ideas
17699 | Variables are auxiliary notions, and not part of the 'eternal' essence of logic [Schönfinkel] |
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
20930 | The existence of law is one thing, its merits and demerits another [Austin,J] |