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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 2766 | . . 3 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 4 | 1, 2, 3 | homffval 17771 | . 2 ⊢ 𝐹 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ (𝑥(Hom ‘𝐶)𝑦)) |
| 5 | ovex 7456 | . 2 ⊢ (𝑥(Hom ‘𝐶)𝑦) ∈ V | |
| 6 | 4, 5 | fnmpoi 8076 | 1 ⊢ 𝐹 Fn (𝐵 × 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 × cxp 5664 Fn wfn 6538 ‘cfv 6543 (class class class)co 7423 Basecbs 17294 Hom chom 17346 Homf chomf 17747 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-ral 3083 df-rex 3093 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5561 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7426 df-oprab 7427 df-mpo 7428 df-1st 7995 df-2nd 7996 df-homf 17751 |
| This theorem is used by: homfeqbas 17777 2oppchomf 17805 0ssc 17919 catsubcat 17921 subcss1 17924 issubc3 17931 fullsubc 17932 fullresc 17933 funcres2c 17985 hofcllem 18339 hofcl 18340 oppchofcl 18341 oyoncl 18351 yonffthlem 18363 srhmsubc 20816 srhmsubcALTV 49131 homf0 49828 oppcendc 49837 discsubc 49883 nelsubclem 49886 ssccatid 49891 resccatlem 49892 imaidfu 49929 imaidfu2 49930 imasubc 49970 imassc 49972 setc1onsubc 50421 |
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