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Mirrors > Home > MPE Home > Th. List > luk-1 | Structured version Visualization version Unicode version |
Description: 1 of 3 axioms for propositional calculus due to Lukasiewicz, derived from Meredith's sole axiom. (Contributed by NM, 14-Dec-2002.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
luk-1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | meredith 1566 | . 2 | |
2 | merlem13 1579 | . . . 4 | |
3 | merlem13 1579 | . . . 4 | |
4 | 2, 3 | ax-mp 5 | . . 3 |
5 | meredith 1566 | . . 3 | |
6 | 4, 5 | ax-mp 5 | . 2 |
7 | 1, 6 | ax-mp 5 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem is referenced by: luklem1 1583 luklem2 1584 luklem4 1586 luklem6 1588 luklem7 1589 luklem8 1590 |
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