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| Mirrors > Home > MPE Home > Th. List > reschom | Structured version Visualization version GIF version | ||
| Description: Hom-sets of the category restriction. (Contributed by Mario Carneiro, 4-Jan-2017.) |
| Ref | Expression |
|---|---|
| rescbas.d | ⊢ 𝐷 = (𝐶 ↾cat 𝐻) |
| rescbas.b | ⊢ 𝐵 = (Base‘𝐶) |
| rescbas.c | ⊢ (𝜑 → 𝐶 ∈ 𝑉) |
| rescbas.h | ⊢ (𝜑 → 𝐻 Fn (𝑆 × 𝑆)) |
| rescbas.s | ⊢ (𝜑 → 𝑆 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| reschom | ⊢ (𝜑 → 𝐻 = (Hom ‘𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ovex 7430 | . . 3 ⊢ (𝐶 ↾s 𝑆) ∈ V | |
| 2 | rescbas.h | . . . 4 ⊢ (𝜑 → 𝐻 Fn (𝑆 × 𝑆)) | |
| 3 | rescbas.s | . . . . . 6 ⊢ (𝜑 → 𝑆 ⊆ 𝐵) | |
| 4 | rescbas.b | . . . . . . . 8 ⊢ 𝐵 = (Base‘𝐶) | |
| 5 | 4 | fvexi 6882 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 6 | 5 | ssex 5278 | . . . . . 6 ⊢ (𝑆 ⊆ 𝐵 → 𝑆 ∈ V) |
| 7 | 3, 6 | syl 17 | . . . . 5 ⊢ (𝜑 → 𝑆 ∈ V) |
| 8 | 7, 7 | xpexd 7735 | . . . 4 ⊢ (𝜑 → (𝑆 × 𝑆) ∈ V) |
| 9 | fnex 7202 | . . . 4 ⊢ ((𝐻 Fn (𝑆 × 𝑆) ∧ (𝑆 × 𝑆) ∈ V) → 𝐻 ∈ V) | |
| 10 | 2, 8, 9 | syl2anc 593 | . . 3 ⊢ (𝜑 → 𝐻 ∈ V) |
| 11 | homid 17442 | . . . 4 ⊢ Hom = Slot (Hom ‘ndx) | |
| 12 | 11 | setsid 17244 | . . 3 ⊢ (((𝐶 ↾s 𝑆) ∈ V ∧ 𝐻 ∈ V) → 𝐻 = (Hom ‘((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉))) |
| 13 | 1, 10, 12 | sylancr 596 | . 2 ⊢ (𝜑 → 𝐻 = (Hom ‘((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉))) |
| 14 | rescbas.d | . . . 4 ⊢ 𝐷 = (𝐶 ↾cat 𝐻) | |
| 15 | rescbas.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝑉) | |
| 16 | 14, 15, 7, 2 | rescval2 17862 | . . 3 ⊢ (𝜑 → 𝐷 = ((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉)) |
| 17 | 16 | fveq2d 6872 | . 2 ⊢ (𝜑 → (Hom ‘𝐷) = (Hom ‘((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉))) |
| 18 | 13, 17 | eqtr4d 2801 | 1 ⊢ (𝜑 → 𝐻 = (Hom ‘𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1561 ∈ wcel 2143 Vcvv 3455 ⊆ wss 3905 〈cop 4589 × cxp 5646 Fn wfn 6517 ‘cfv 6522 (class class class)co 7397 sSet csts 17200 ndxcnx 17230 Basecbs 17246 ↾s cress 17267 Hom chom 17298 ↾cat cresc 17842 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5228 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 ax-cnex 11130 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6289 df-ord 6350 df-on 6351 df-lim 6352 df-suc 6353 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-f1 6527 df-fo 6528 df-f1o 6529 df-fv 6530 df-ov 7400 df-oprab 7401 df-mpo 7402 df-om 7848 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8382 df-er 8679 df-en 8929 df-dom 8930 df-sdom 8931 df-pnf 11219 df-mnf 11220 df-ltxr 11222 df-nn 12212 df-2 12281 df-3 12282 df-4 12283 df-5 12284 df-6 12285 df-7 12286 df-8 12287 df-9 12288 df-n0 12483 df-dec 12690 df-sets 17201 df-slot 17219 df-ndx 17231 df-hom 17311 df-resc 17845 |
| This theorem is referenced by: reschomf 17865 subccatid 17880 issubc3 17883 fullresc 17885 funcres 17930 funcres2b 17931 funcres2 17932 idfusubc 17934 rngchomfval 20673 ringchomfval 20702 ssccatid 49694 resccatlem 49695 subthinc 50065 |
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