| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > fveqeq2 | GIF version | ||
| Description: Equality deduction for function value. (Contributed by BJ, 31-Aug-2022.) |
| Ref | Expression |
|---|---|
| fveqeq2 | ⊢ (𝐴 = 𝐵 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 19 | . 2 ⊢ (𝐴 = 𝐵 → 𝐴 = 𝐵) | |
| 2 | 1 | fveqeq2d 5637 | 1 ⊢ (𝐴 = 𝐵 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 = wceq 1395 ‘cfv 5318 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rex 2514 df-v 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-iota 5278 df-fv 5326 |
| This theorem is referenced by: uchoice 6289 nninfninc 7301 nnnninfeq2 7307 fodjum 7324 fodju0 7325 fodjuomnilemres 7326 fodjumkvlemres 7337 fodjumkv 7338 enmkvlem 7339 enwomnilem 7347 nninfwlporlemd 7350 nninfwlpoimlemginf 7354 nninfwlpoim 7357 nninfinfwlpo 7358 seq3id3 10758 seq3id2 10760 seq3z 10762 wrdmap 11116 wrdl1s1 11178 wrdind 11270 wrd2ind 11271 reuccatpfxs1lem 11294 reuccatpfxs1 11295 fsum3cvg 11905 summodclem2a 11908 fproddccvg 12099 nninfctlemfo 12577 algfx 12590 ennnfonelemim 13011 gsumfzz 13544 ghmf1 13826 mplsubgfilemcl 14679 ivthreinc 15335 ivthdich 15343 reeff1oleme 15462 sin0pilem2 15472 lgsquadlem1 15772 gropd 15864 grstructd2dom 15865 uhgr2edg 16020 usgredg2v 16038 ushgredgedgloop 16042 vtxlpfi 16050 vtxdumgrfival 16058 isclwwlkng 16149 clwwlkn1loopb 16162 bj-charfunbi 16257 2omap 16446 pw1map 16448 nninfomnilem 16472 nnnninfex 16476 trilpolemlt1 16497 redcwlpolemeq1 16510 nconstwlpolem0 16519 nconstwlpolem 16521 neapmkvlem 16523 |
| Copyright terms: Public domain | W3C validator |