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Mirrors > Home > ILE Home > Th. List > Mathboxes > bj-nfalt | Unicode version |
Description: Closed form of nfal 1587 (copied from set.mm). (Contributed by BJ, 2-May-2019.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
bj-nfalt |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bj-hbalt 15193 |
. . . 4
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2 | 1 | alimi 1466 |
. . 3
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3 | 2 | alcoms 1487 |
. 2
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4 | df-nf 1472 |
. . 3
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5 | 4 | albii 1481 |
. 2
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6 | df-nf 1472 |
. 2
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7 | 3, 5, 6 | 3imtr4i 201 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1458 ax-7 1459 ax-gen 1460 |
This theorem depends on definitions: df-bi 117 df-nf 1472 |
This theorem is referenced by: (None) |
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