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Mirrors > Home > NFE Home > Th. List > nic-dfim | Unicode version |
Description: Define implication in
terms of 'nand'. Analogous to
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Ref | Expression |
---|---|
nic-dfim |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nanim 1292 |
. . 3
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2 | 1 | bicomi 193 |
. 2
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3 | nanbi 1294 |
. 2
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4 | 2, 3 | mpbi 199 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-nan 1288 |
This theorem is referenced by: nic-stdmp 1455 nic-luk1 1456 nic-luk2 1457 nic-luk3 1458 |
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