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Mirrors > Home > NFE Home > Th. List > luk-1 | 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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-meredith 1406 |
. 2
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2 | merlem13 1419 |
. . . 4
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3 | merlem13 1419 |
. . . 4
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4 | 2, 3 | ax-mp 5 |
. . 3
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5 | ax-meredith 1406 |
. . 3
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6 | 4, 5 | ax-mp 5 |
. 2
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7 | 1, 6 | ax-mp 5 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-meredith 1406 |
This theorem is referenced by: luklem1 1423 luklem2 1424 luklem4 1426 luklem6 1428 luklem7 1429 luklem8 1430 |
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