4 ideas
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
19087 | The meaning or purport of a symbol is all the rational conduct it would lead to [Peirce] |
8326 | Science has shown that causal relations are just transfers of energy or momentum [Fair, by Sosa/Tooley] |
10379 | Fair shifted his view to talk of counterfactuals about energy flow [Fair, by Schaffer,J] |