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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 6649 | . 2 ⊢ (𝜑 → (𝐹‘𝐴) = (𝐹‘𝐵)) |
3 | 2 | eqeq1d 2800 | 1 ⊢ (𝜑 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 = wceq 1538 ‘cfv 6324 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-un 3886 df-in 3888 df-ss 3898 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-iota 6283 df-fv 6332 |
This theorem is referenced by: fveqeq2 6654 op1stg 7683 op2ndg 7684 fpwwecbv 10055 fpwwelem 10056 fseq1m1p1 12977 ico01fl0 13184 divfl0 13189 hashssdif 13769 cshw1 14175 smumullem 15831 algcvga 15913 vdwlem6 16312 vdwlem8 16314 ramub1lem1 16352 resmhm 17977 isghm 18350 fislw 18742 pgpfaclem2 19197 abvfval 19582 abvpropd 19606 lspsneq0 19777 reslmhm 19817 lspsneq 19887 mdetunilem7 21223 imasdsf1olem 22980 bcth 23933 ovoliunnul 24111 lognegb 25181 vmaval 25698 2lgslem3c 25982 2lgslem3d 25983 rusgrnumwrdl2 27376 wlkiswwlks2 27661 rusgrnumwwlks 27760 clwlkclwwlklem1 27784 clwlkclwwlklem2 27785 numclwwlk1 28146 wlkl0 28152 numclwlk1lem1 28154 isnvlem 28393 lnoval 28535 normsub0 28919 elunop2 29796 ishst 29997 hstri 30048 aciunf1lem 30425 lmatfval 31167 lmatcl 31169 voliune 31598 volfiniune 31599 snmlval 32691 voliunnfl 35101 sdclem1 35181 islshp 36275 lshpnel2N 36281 lshpset2N 36415 dicffval 38470 dicfval 38471 mapdhval 39020 hdmap1fval 39092 hdmap1vallem 39093 hdmap1val 39094 diophin 39713 eldioph4b 39752 eldioph4i 39753 diophren 39754 fperiodmullem 41935 fargshiftfva 43960 paireqne 44028 resmgmhm 44418 0ringdif 44494 |
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