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Mirrors > Home > NFE Home > Th. List > ax2 | Unicode version |
Description: Standard propositional axiom derived from Lukasiewicz axioms. (Contributed by NM, 22-Dec-2002.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ax2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | luklem7 1429 |
. 2
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2 | luklem8 1430 |
. . 3
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3 | luklem6 1428 |
. . . 4
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4 | luklem8 1430 |
. . . 4
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5 | 3, 4 | ax-mp 5 |
. . 3
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6 | 2, 5 | luklem1 1423 |
. 2
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7 | 1, 6 | luklem1 1423 |
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: (None) |
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