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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 5809 |
. . 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 4251 ax-pow 4313 ax-pr 4348 |
| 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 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fn 5383 df-fv 5388 |
| This theorem is used by: foeqcnvco 5999 f1eqcocnv 6000 offeq 6320 tfrlem1 6583 frecrdg 6683 updjudhcoinlf 7426 updjudhcoinrg 7427 nnnninfeq 7474 seq3val 10918 seqvalcd 10919 seq3feq2 10934 seq3feq 10938 seqfeq3 10987 ccatlid 11396 ccatrid 11397 ccatass 11398 ccatswrd 11464 swrdccat2 11465 pfxid 11480 ccatpfx 11495 pfxccat1 11496 swrdswrd 11499 cats1un 11515 swrdccatin1 11519 swrdccatin2 11523 pfxccatin12 11527 seq3shft 11625 efcvgfsum 12459 nninfctlemfo 12842 xpsfeq 13725 gsumf1ofi 14250 psrlidmfi 15199 psrridmfi 15200 psrass1fi 15201 upxp 15498 uptx 15500 dvidlemap 15917 dvidrelem 15918 dvidsslem 15919 dvrecap 15939 depindlem3 16954 peano4nninf 17255 nninfsellemeqinf 17265 nninffeq 17269 refeq 17279 |
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