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Mirrors > Home > ILE Home > Th. List > equs45f | Unicode version |
Description: Two ways of expressing
substitution when ![]() ![]() |
Ref | Expression |
---|---|
equs45f.1 |
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Ref | Expression |
---|---|
equs45f |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | equs45f.1 |
. . . . 5
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2 | 1 | anim2i 342 |
. . . 4
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3 | 2 | eximi 1611 |
. . 3
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4 | equs5a 1805 |
. . 3
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5 | 3, 4 | syl 14 |
. 2
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6 | equs4 1736 |
. 2
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7 | 5, 6 | impbii 126 |
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-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-11 1517 ax-4 1521 ax-i9 1541 ax-ial 1545 |
This theorem depends on definitions: df-bi 117 |
This theorem is referenced by: sb5f 1815 |
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