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| Mirrors > Home > MPE Home > Th. List > rngciso | Structured version Visualization version GIF version | ||
| Description: An isomorphism in the category of non-unital rings is a bijection. (Contributed by AV, 28-Feb-2020.) |
| Ref | Expression |
|---|---|
| rngcsect.c | ⊢ 𝐶 = (RngCat‘𝑈) |
| rngcsect.b | ⊢ 𝐵 = (Base‘𝐶) |
| rngcsect.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| rngcsect.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| rngcsect.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| rngciso.n | ⊢ 𝐼 = (Iso‘𝐶) |
| Ref | Expression |
|---|---|
| rngciso | ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rngcsect.b | . . . 4 ⊢ 𝐵 = (Base‘𝐶) | |
| 2 | eqid 2765 | . . . 4 ⊢ (Inv‘𝐶) = (Inv‘𝐶) | |
| 3 | rngcsect.u | . . . . 5 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 4 | rngcsect.c | . . . . . 6 ⊢ 𝐶 = (RngCat‘𝑈) | |
| 5 | 4 | rngccat 20710 | . . . . 5 ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat) |
| 6 | 3, 5 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 7 | rngcsect.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 8 | rngcsect.y | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 9 | rngciso.n | . . . 4 ⊢ 𝐼 = (Iso‘𝐶) | |
| 10 | 1, 2, 6, 7, 8, 9 | isoval 17812 | . . 3 ⊢ (𝜑 → (𝑋𝐼𝑌) = dom (𝑋(Inv‘𝐶)𝑌)) |
| 11 | 10 | eleq2d 2851 | . 2 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 12 | 1, 2, 6, 7, 8 | invfun 17811 | . . . . 5 ⊢ (𝜑 → Fun (𝑋(Inv‘𝐶)𝑌)) |
| 13 | funfvbrb 7036 | . . . . 5 ⊢ (Fun (𝑋(Inv‘𝐶)𝑌) → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) ↔ 𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹))) | |
| 14 | 12, 13 | syl 18 | . . . 4 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) ↔ 𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹))) |
| 15 | 4, 1, 3, 7, 8, 2 | rngcinv 20713 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹))) |
| 16 | simpl 487 | . . . . 5 ⊢ ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌)) | |
| 17 | 15, 16 | biimtrdi 256 | . . . 4 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 18 | 14, 17 | sylbid 243 | . . 3 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 19 | eqid 2765 | . . . 4 ⊢ ◡𝐹 = ◡𝐹 | |
| 20 | 4, 1, 3, 7, 8, 2 | rngcinv 20713 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹))) |
| 21 | funrel 6542 | . . . . . . 7 ⊢ (Fun (𝑋(Inv‘𝐶)𝑌) → Rel (𝑋(Inv‘𝐶)𝑌)) | |
| 22 | 12, 21 | syl 18 | . . . . . 6 ⊢ (𝜑 → Rel (𝑋(Inv‘𝐶)𝑌)) |
| 23 | releldm 5925 | . . . . . . 7 ⊢ ((Rel (𝑋(Inv‘𝐶)𝑌) ∧ 𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌)) | |
| 24 | 23 | ex 417 | . . . . . 6 ⊢ (Rel (𝑋(Inv‘𝐶)𝑌) → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 25 | 22, 24 | syl 18 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 26 | 20, 25 | sylbird 263 | . . . 4 ⊢ (𝜑 → ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 27 | 19, 26 | mpan2i 709 | . . 3 ⊢ (𝜑 → (𝐹 ∈ (𝑋 RngIso 𝑌) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 28 | 18, 27 | impbid 215 | . 2 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 29 | 11, 28 | bitrd 282 | 1 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1563 ∈ wcel 2145 class class class wbr 5105 ◡ccnv 5651 dom cdm 5652 Rel wrel 5657 Fun wfun 6519 ‘cfv 6525 (class class class)co 7400 Basecbs 17259 Catccat 17710 Invcinv 17792 Isociso 17793 RngIso crngim 20508 RngCatcrngc 20692 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4869 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-er 8682 df-map 8814 df-pm 8815 df-ixp 8884 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-nn 12225 df-2 12294 df-3 12295 df-4 12296 df-5 12297 df-6 12298 df-7 12299 df-8 12300 df-9 12301 df-n0 12496 df-z 12583 df-dec 12703 df-uz 12854 df-fz 13527 df-struct 17197 df-sets 17214 df-slot 17232 df-ndx 17244 df-base 17260 df-ress 17281 df-plusg 17313 df-hom 17324 df-cco 17325 df-0g 17484 df-cat 17714 df-cid 17715 df-homf 17716 df-sect 17794 df-inv 17795 df-iso 17796 df-ssc 17857 df-resc 17858 df-subc 17859 df-estrc 18169 df-mgm 18688 df-mgmhm 18740 df-sgrp 18767 df-mnd 18783 df-mhm 18831 df-grp 18993 df-ghm 19275 df-abl 19844 df-mgp 20208 df-rng 20222 df-rnghm 20509 df-rngim 20510 df-rngc 20693 |
| This theorem is referenced by: (None) |
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