| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5973 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) | |
| 2 | 1 | rneqd 5929 | . 2 ⊢ (𝐴 = 𝐵 → ran (𝐴 ↾ 𝐶) = ran (𝐵 ↾ 𝐶)) |
| 3 | df-ima 5675 | . 2 ⊢ (𝐴 “ 𝐶) = ran (𝐴 ↾ 𝐶) | |
| 4 | df-ima 5675 | . 2 ⊢ (𝐵 “ 𝐶) = ran (𝐵 ↾ 𝐶) | |
| 5 | 2, 3, 4 | 3eqtr4g 2829 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ran crn 5663 ↾ cres 5664 “ cima 5665 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-br 5114 df-opab 5178 df-cnv 5670 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 |
| This theorem is referenced by: imaeq1i 6060 imaeq1d 6062 suppval 8157 naddcllem 8661 eceq2 8735 marypha1lem 9392 marypha1 9393 ackbij2lem2 10221 ackbij2lem3 10222 r1om 10225 limsupval 15524 isacs1i 17712 mreacs 17713 islindf 21930 iscnp 23362 xkoccn 23744 xkohaus 23778 xkoco1cn 23782 xkoco2cn 23783 xkococnlem 23784 xkococn 23785 xkoinjcn 23812 fmval 24068 fmf 24070 utoptop 24359 restutop 24362 restutopopn 24363 ustuqtoplem 24364 ustuqtop1 24366 ustuqtop2 24367 ustuqtop4 24369 ustuqtop5 24370 utopsnneiplem 24372 utopsnnei 24374 neipcfilu 24420 psmetutop 24692 cfilfval 25391 elply2 26321 coeeu 26350 coelem 26351 coeeq 26352 dmarea 27087 negsval 28183 mclsax 35959 tailfval 36771 bj-cleq 37485 bj-funun 37783 poimirlem15 38173 poimirlem24 38182 brtrclfv2 44344 liminfval 46364 ushggricedg 48580 uhgrimisgrgric 48584 |
| Copyright terms: Public domain | W3C validator |