1 TODO Abstract
3.1 he is concerned with the conditions which would have to be fulfilled by a logically perfect language – three problems
3.1.1 What happens in our brain :: psychology (syntax?)
3.1.2 How semantics gets into sentences :: epistemology (semantics?)
3.1.3 Truth-vs-falsehood :: ? (pragmatics?)
3.1.4 what relation must one fact (such as a sentence) have to another in order to be capable of being a symbol for that other? :: logic? (??)
accurate Symbolism, i.e. for Symbolism in which a sentence ‘means’ something quite definite.