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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 7420 updjudhcoinrg 7421 nnnninfeq 7468 seq3val 10910 seqvalcd 10911 seq3feq2 10926 seq3feq 10930 seqfeq3 10979 ccatlid 11388 ccatrid 11389 ccatass 11390 ccatswrd 11456 swrdccat2 11457 pfxid 11472 ccatpfx 11487 pfxccat1 11488 swrdswrd 11491 cats1un 11507 swrdccatin1 11511 swrdccatin2 11515 pfxccatin12 11519 seq3shft 11617 efcvgfsum 12450 nninfctlemfo 12833 xpsfeq 13715 gsumf1ofi 14209 upxp 15422 uptx 15424 dvidlemap 15841 dvidrelem 15842 dvidsslem 15843 dvrecap 15863 depindlem3 16847 peano4nninf 17147 nninfsellemeqinf 17157 nninffeq 17161 refeq 17171 |
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