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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 2605 |
. 2
|
| 3 | eqfnfvd.1 |
. . 3
| |
| 4 | eqfnfvd.2 |
. . 3
| |
| 5 | eqfnfv 5744 |
. . 3
| |
| 6 | 3, 4, 5 | syl2anc 411 |
. 2
|
| 7 | 2, 6 | mpbird 167 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-sbc 3032 df-csb 3128 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fn 5329 df-fv 5334 |
| This theorem is referenced by: foeqcnvco 5931 f1eqcocnv 5932 offeq 6249 tfrlem1 6474 frecrdg 6574 updjudhcoinlf 7279 updjudhcoinrg 7280 nnnninfeq 7327 seq3val 10723 seqvalcd 10724 seq3feq2 10739 seq3feq 10743 seqfeq3 10792 ccatlid 11187 ccatrid 11188 ccatass 11189 ccatswrd 11255 swrdccat2 11256 pfxid 11271 ccatpfx 11286 pfxccat1 11287 swrdswrd 11290 cats1un 11306 swrdccatin1 11310 swrdccatin2 11314 pfxccatin12 11318 seq3shft 11416 efcvgfsum 12246 nninfctlemfo 12629 xpsfeq 13446 upxp 15015 uptx 15017 dvidlemap 15434 dvidrelem 15435 dvidsslem 15436 dvrecap 15456 depindlem3 16378 peano4nninf 16659 nninfsellemeqinf 16669 nninffeq 16673 refeq 16683 |
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