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| Mirrors > Home > MPE Home > Th. List > homffn | Structured version Visualization version GIF version | ||
| Description: The functionalized Hom-set operation is a function. (Contributed by Mario Carneiro, 4-Jan-2017.) |
| Ref | Expression |
|---|---|
| homffn.f | ⊢ 𝐹 = (Homf ‘𝐶) |
| homffn.b | ⊢ 𝐵 = (Base‘𝐶) |
| Ref | Expression |
|---|---|
| homffn | ⊢ 𝐹 Fn (𝐵 × 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | homffn.f | . . 3 ⊢ 𝐹 = (Homf ‘𝐶) | |
| 2 | homffn.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
| 3 | eqid 2760 | . . 3 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 4 | 1, 2, 3 | homffval 17869 | . 2 ⊢ 𝐹 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ (𝑥(Hom ‘𝐶)𝑦)) |
| 5 | ovex 7453 | . 2 ⊢ (𝑥(Hom ‘𝐶)𝑦) ∈ V | |
| 6 | 4, 5 | fnmpoi 8081 | 1 ⊢ 𝐹 Fn (𝐵 × 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 × cxp 5648 Fn wfn 6533 ‘cfv 6538 (class class class)co 7420 Basecbs 17392 Hom chom 17444 Homf chomf 17845 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7423 df-oprab 7424 df-mpo 7425 df-1st 8001 df-2nd 8002 df-homf 17849 |
| This theorem is used by: homfeqbas 17875 2oppchomf 17903 0ssc 18017 catsubcat 18019 subcss1 18022 issubc3 18029 fullsubc 18030 fullresc 18031 funcres2c 18083 hofcllem 18437 hofcl 18438 oppchofcl 18439 oyoncl 18449 yonffthlem 18461 srhmsubc 20937 srhmsubcALTV 49515 homf0 50216 oppcendc 50225 discsubc 50271 nelsubclem 50274 ssccatid 50279 resccatlem 50280 imaidfu 50319 imaidfu2 50320 imasubc 50360 imassc 50362 setc1onsubc 50833 |
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