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Mirrors > Home > ILE Home > Th. List > dfixp | Unicode version |
Description: Eliminate the expression
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Ref | Expression |
---|---|
dfixp |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ixp 6726 |
. 2
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2 | abid2 2310 |
. . . . 5
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3 | 2 | fneq2i 5330 |
. . . 4
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4 | 3 | anbi1i 458 |
. . 3
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5 | 4 | abbii 2305 |
. 2
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6 | 1, 5 | eqtri 2210 |
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 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-11 1517 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2171 |
This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2176 df-cleq 2182 df-clel 2185 df-fn 5238 df-ixp 6726 |
This theorem is referenced by: ixpsnval 6728 elixp2 6729 ixpeq1 6736 cbvixp 6742 ixp0x 6753 |
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