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Mirrors > Home > ILE Home > Th. List > dmeq | Unicode version |
Description: Equality theorem for domain. (Contributed by NM, 11-Aug-1994.) |
Ref | Expression |
---|---|
dmeq |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmss 4596 |
. . 3
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2 | dmss 4596 |
. . 3
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3 | 1, 2 | anim12i 331 |
. 2
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4 | eqss 3027 |
. 2
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5 | eqss 3027 |
. 2
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6 | 3, 4, 5 | 3imtr4i 199 |
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 104 ax-ia2 105 ax-ia3 106 ax-io 663 ax-5 1379 ax-7 1380 ax-gen 1381 ax-ie1 1425 ax-ie2 1426 ax-8 1438 ax-10 1439 ax-11 1440 ax-i12 1441 ax-bndl 1442 ax-4 1443 ax-17 1462 ax-i9 1466 ax-ial 1470 ax-i5r 1471 ax-ext 2067 |
This theorem depends on definitions: df-bi 115 df-3an 924 df-tru 1290 df-nf 1393 df-sb 1690 df-clab 2072 df-cleq 2078 df-clel 2081 df-nfc 2214 df-v 2616 df-un 2990 df-in 2992 df-ss 2999 df-sn 3431 df-pr 3432 df-op 3434 df-br 3815 df-dm 4414 |
This theorem is referenced by: dmeqi 4598 dmeqd 4599 xpid11m 4619 fneq1 5058 eqfnfv2 5346 offval 5801 ofrfval 5802 offval3 5843 smoeq 5990 tfrlemi14d 6033 tfr1onlemres 6049 tfrcllemres 6062 rdgivallem 6081 rdgon 6086 rdg0 6087 frec0g 6097 freccllem 6102 frecfcllem 6104 frecsuclem 6106 frecsuc 6107 ereq1 6232 fundmeng 6457 |
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