## Philosophy Lexicon of Arguments | |||

Author | Item | Excerpt | Meta data |
---|---|---|---|

Cresswell, M.J. Books on Amazon |
Truth Functions | HC I 24 Truth function / HC: only four different truth functions (tr.f.) of p: 1 Negation - 2 p itself - 3 true, no matter whether if p itself is true or false - 4 wrong, no matter whether p itself is true or false. HC I 44 Truth-function / Hughes / Cresswell: each wff of the propositional calculus (prop.calc. is a truth function of its variables - ((s) be found in table) - modal function: any wff containing a modal operator, is a modal function of its variables. |
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 |

> Counter arguments against **Cresswell**

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Ed. Martin Schulz, access date 2017-03-26