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| Mirrors > Home > MPE Home > Th. List > fveqeq2d | Structured version Visualization version GIF version | ||
| Description: Equality deduction for function value. (Contributed by BJ, 30-Aug-2022.) |
| Ref | Expression |
|---|---|
| fveqeq2d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| fveqeq2d | ⊢ (𝜑 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveqeq2d.1 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | 1 | fveq2d 6839 | . 2 ⊢ (𝜑 → (𝐹‘𝐴) = (𝐹‘𝐵)) |
| 3 | 2 | eqeq1d 2739 | 1 ⊢ (𝜑 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ‘cfv 6493 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-iota 6449 df-fv 6501 |
| This theorem is referenced by: fveqeq2 6844 op1stg 7948 op2ndg 7949 ttrclss 9635 ttrclselem2 9641 fpwwecbv 10561 fpwwelem 10562 fseq1m1p1 13547 ico01fl0 13772 divfl0 13777 hashssdif 14368 cshw1 14778 smumullem 16455 algcvga 16542 vdwlem6 16951 vdwlem8 16953 ramub1lem1 16991 resmgmhm 18673 resmhm 18782 isghmOLD 19185 fislw 19594 pgpfaclem2 20053 0ringdif 20498 abvfval 20781 abvpropd 20806 lspsneq0 21001 reslmhm 21042 lspsneq 21115 mdetunilem7 22596 imasdsf1olem 24351 bcth 25309 ovoliunnul 25487 lognegb 26570 vmaval 27093 2lgslem3c 27378 2lgslem3d 27379 rusgrnumwrdl2 29673 wlkiswwlks2 29961 rusgrnumwwlks 30063 clwlkclwwlklem1 30087 clwlkclwwlklem2 30088 numclwwlk1 30449 wlkl0 30455 numclwlk1lem1 30457 isnvlem 30699 lnoval 30841 normsub0 31225 elunop2 32102 ishst 32303 hstri 32354 aciunf1lem 32753 esplyfvaln 33736 esplyind 33737 vietadeg1 33740 lmatfval 33977 lmatcl 33979 voliune 34392 volfiniune 34393 snmlval 35532 voliunnfl 38002 sdclem1 38081 islshp 39442 lshpnel2N 39448 lshpset2N 39582 dicffval 41637 dicfval 41638 mapdhval 42187 hdmap1fval 42259 hdmap1vallem 42260 hdmap1val 42261 aks6d1c6isolem1 42630 aks6d1c6lem5 42633 diophin 43221 eldioph4b 43260 eldioph4i 43261 diophren 43262 fperiodmullem 45757 fargshiftfva 47918 paireqne 47986 grimidvtxedg 48376 grimcnv 48379 grimco 48380 isuspgrim0 48385 uhgrimisgrgriclem 48421 clnbgrgrimlem 48424 |
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