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| Mirrors > Home > ILE Home > Th. List > eqfnfvd | Unicode version | ||
| Description: Deduction for equality of functions. (Contributed by Mario Carneiro, 24-Jul-2014.) |
| Ref | Expression |
|---|---|
| eqfnfvd.1 |
|
| eqfnfvd.2 |
|
| eqfnfvd.3 |
|
| Ref | Expression |
|---|---|
| eqfnfvd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqfnfvd.3 |
. . 3
| |
| 2 | 1 | ralrimiva 2623 |
. 2
|
| 3 | eqfnfvd.1 |
. . 3
| |
| 4 | eqfnfvd.2 |
. . 3
| |
| 5 | eqfnfv 5806 |
. . 3
| |
| 6 | 3, 4, 5 | syl2anc 415 |
. 2
|
| 7 | 2, 6 | mpbird 167 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fn 5380 df-fv 5385 |
| This theorem is used by: foeqcnvco 5996 f1eqcocnv 5997 offeq 6316 tfrlem1 6579 frecrdg 6679 updjudhcoinlf 7421 updjudhcoinrg 7422 nnnninfeq 7469 seq3val 10912 seqvalcd 10913 seq3feq2 10928 seq3feq 10932 seqfeq3 10981 ccatlid 11390 ccatrid 11391 ccatass 11392 ccatswrd 11458 swrdccat2 11459 pfxid 11474 ccatpfx 11489 pfxccat1 11490 swrdswrd 11493 cats1un 11509 swrdccatin1 11513 swrdccatin2 11517 pfxccatin12 11521 seq3shft 11619 efcvgfsum 12453 nninfctlemfo 12836 xpsfeq 13718 gsumf1ofi 14212 upxp 15426 uptx 15428 dvidlemap 15845 dvidrelem 15846 dvidsslem 15847 dvrecap 15867 depindlem3 16877 peano4nninf 17177 nninfsellemeqinf 17187 nninffeq 17191 refeq 17201 |
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