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Mirrors > Home > ILE Home > Th. List > moani | Unicode version |
Description: "At most one" is still true when a conjunct is added. (Contributed by NM, 9-Mar-1995.) |
Ref | Expression |
---|---|
moani.1 |
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Ref | Expression |
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moani |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | moani.1 |
. 2
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2 | moan 2018 |
. 2
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3 | 1, 2 | ax-mp 7 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 |
This theorem depends on definitions: df-bi 116 df-nf 1396 df-sb 1694 df-eu 1952 df-mo 1953 |
This theorem is referenced by: euxfr2dc 2801 fvopab6 5410 1stconst 6000 2ndconst 6001 |
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