## Philosophy Lexicon of Arguments | |||

Axiom: principle or rule for linking elements of a theory that is not proven within the theory. It is assumed that axioms are true and evident. Adding or eliminating axioms turns a system into another system. Accordingly, more or less statements can be constructed or derived in the new system. > System. | |||

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Books on Amazon |
HC I 120 Axiomatization / propositional calculus / Hughes / Cresswell: done in other way than with the p.c. Instead of axioms we use axiom schemes and parallel theorem schemes, i.e. general principles which determine that any wff of a certain shape is a theorem. |
Cr I M. J. Cresswell Semantical Essays (Possible worlds and their rivals) Dordrecht Boston 1988 Cr II M. J. Cresswell Structured Meanings Cambridge Mass. 1984 |

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Ed. Martin Schulz, access date 2017-05-29