## Philosophy Lexicon of Arguments | |||

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

Wessel, Horst Books on Amazon |
Laws | I 48 Laws / rules / logic / Wessel: Law = tautology, with operators I 50 Rules: statements about formulas (formulas themselves do not appear as formulas, but as quotations) = equivalences. "Equivalence" is not an operator. I 345/46 Law / Wessel: always logical form of implication - (x) (P (x) > Q (x) - although not all true implications are laws - when a law has the form of an implication it cannot be a statement of the form Q (a) where a is an individual constant. |
We I H. Wessel Logik Berlin 1999 |

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Ed. Martin Schulz, access date 2017-03-24