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Mirrors > Home > ILE Home > Th. List > feq1d | Unicode version |
Description: Equality deduction for functions. (Contributed by NM, 19-Feb-2008.) |
Ref | Expression |
---|---|
feq1d.1 |
Ref | Expression |
---|---|
feq1d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | feq1d.1 | . 2 | |
2 | feq1 5328 | . 2 | |
3 | 1, 2 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wceq 1348 wf 5192 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-sn 3587 df-pr 3588 df-op 3590 df-br 3988 df-opab 4049 df-rel 4616 df-cnv 4617 df-co 4618 df-dm 4619 df-rn 4620 df-fun 5198 df-fn 5199 df-f 5200 |
This theorem is referenced by: feq12d 5335 fco2 5362 fssres2 5373 fresin 5374 fmpt3d 5650 fmptco 5660 fressnfv 5681 off 6071 caofinvl 6081 f2ndf 6203 eroprf 6603 pmresg 6651 fseq1p1m1 10039 mgmplusf 12609 mgmb1mgm1 12611 lmbr 12968 blfps 13164 blf 13165 dvmptclx 13435 lgsfcl3 13677 |
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