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discussion—this distinction may have been introduced by carnap ). it has become common to speak of a formalism, more-or-less synonymously with a formal system within standard mathematics invented for a particular purpose. this may not be much more than a notation, such as dirac 's bra-ket notation. mathematical
whether a given wff is a theorem or not. references the journal of symbolic logic has been a repository of literature on formal systems. addison, john, leon henkin, and alfred tarski, eds. proceedings of the international symposium of the theory of models, berkeley, . amsterdam, . boole, george. the mathematical...
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