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| Mirrors > Home > MPE Home > Th. List > imaeq1 | Structured version Visualization version GIF version | ||
| Description: Equality theorem for image. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| imaeq1 | ⊢ (𝐴 = 𝐵 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reseq1 5929 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) | |
| 2 | 1 | rneqd 5885 | . 2 ⊢ (𝐴 = 𝐵 → ran (𝐴 ↾ 𝐶) = ran (𝐵 ↾ 𝐶)) |
| 3 | df-ima 5634 | . 2 ⊢ (𝐴 “ 𝐶) = ran (𝐴 ↾ 𝐶) | |
| 4 | df-ima 5634 | . 2 ⊢ (𝐵 “ 𝐶) = ran (𝐵 ↾ 𝐶) | |
| 5 | 2, 3, 4 | 3eqtr4g 2793 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ran crn 5622 ↾ cres 5623 “ cima 5624 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2705 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2712 df-cleq 2725 df-clel 2808 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4285 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-br 5096 df-opab 5158 df-cnv 5629 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 |
| This theorem is referenced by: imaeq1i 6013 imaeq1d 6015 suppval 8101 naddcllem 8600 eceq2 8672 marypha1lem 9327 marypha1 9328 ackbij2lem2 10140 ackbij2lem3 10141 r1om 10144 limsupval 15391 isacs1i 17573 mreacs 17574 islindf 21759 iscnp 23162 xkoccn 23544 xkohaus 23578 xkoco1cn 23582 xkoco2cn 23583 xkococnlem 23584 xkococn 23585 xkoinjcn 23612 fmval 23868 fmf 23870 utoptop 24159 restutop 24162 restutopopn 24163 ustuqtoplem 24164 ustuqtop1 24166 ustuqtop2 24167 ustuqtop4 24169 ustuqtop5 24170 utopsnneiplem 24172 utopsnnei 24174 neipcfilu 24220 psmetutop 24492 cfilfval 25201 elply2 26138 coeeu 26167 coelem 26168 coeeq 26169 dmarea 26904 negsval 27977 mclsax 35624 tailfval 36427 bj-cleq 37017 bj-funun 37307 poimirlem15 37685 poimirlem24 37694 brtrclfv2 43834 liminfval 45871 ushggricedg 48041 uhgrimisgrgric 48045 |
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