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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 7390 | . . 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 6842 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 6 | 5 | ssex 5250 | . . . . . 6 ⊢ (𝑆 ⊆ 𝐵 → 𝑆 ∈ V) |
| 7 | 3, 6 | syl 17 | . . . . 5 ⊢ (𝜑 → 𝑆 ∈ V) |
| 8 | 7, 7 | xpexd 7695 | . . . 4 ⊢ (𝜑 → (𝑆 × 𝑆) ∈ V) |
| 9 | fnex 7162 | . . . 4 ⊢ ((𝐻 Fn (𝑆 × 𝑆) ∧ (𝑆 × 𝑆) ∈ V) → 𝐻 ∈ V) | |
| 10 | 2, 8, 9 | syl2anc 590 | . . 3 ⊢ (𝜑 → 𝐻 ∈ V) |
| 11 | homid 17367 | . . . 4 ⊢ Hom = Slot (Hom ‘ndx) | |
| 12 | 11 | setsid 17169 | . . 3 ⊢ (((𝐶 ↾s 𝑆) ∈ V ∧ 𝐻 ∈ V) → 𝐻 = (Hom ‘((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉))) |
| 13 | 1, 10, 12 | sylancr 593 | . 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 17787 | . . 3 ⊢ (𝜑 → 𝐷 = ((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉)) |
| 17 | 16 | fveq2d 6832 | . 2 ⊢ (𝜑 → (Hom ‘𝐷) = (Hom ‘((𝐶 ↾s 𝑆) sSet 〈(Hom ‘ndx), 𝐻〉))) |
| 18 | 13, 17 | eqtr4d 2777 | 1 ⊢ (𝜑 → 𝐻 = (Hom ‘𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 Vcvv 3431 ⊆ wss 3883 〈cop 4562 × cxp 5617 Fn wfn 6481 ‘cfv 6486 (class class class)co 7357 sSet csts 17125 ndxcnx 17155 Basecbs 17171 ↾s cress 17192 Hom chom 17223 ↾cat cresc 17767 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5200 ax-sep 5219 ax-nul 5229 ax-pow 5295 ax-pr 5363 ax-un 7679 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4263 df-if 4456 df-pw 4532 df-sn 4557 df-pr 4559 df-op 4563 df-uni 4840 df-iun 4924 df-br 5074 df-opab 5136 df-mpt 5155 df-tr 5181 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-ov 7360 df-oprab 7361 df-mpo 7362 df-om 7808 df-2nd 7933 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 df-er 8634 df-en 8885 df-dom 8886 df-sdom 8887 df-pnf 11173 df-mnf 11174 df-ltxr 11176 df-nn 12167 df-2 12236 df-3 12237 df-4 12238 df-5 12239 df-6 12240 df-7 12241 df-8 12242 df-9 12243 df-n0 12430 df-dec 12637 df-sets 17126 df-slot 17144 df-ndx 17156 df-hom 17236 df-resc 17770 |
| This theorem is referenced by: reschomf 17790 subccatid 17805 issubc3 17808 fullresc 17810 funcres 17855 funcres2b 17856 funcres2 17857 idfusubc 17859 rngchomfval 20595 ringchomfval 20624 ssccatid 49570 resccatlem 49571 subthinc 49941 |
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