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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 2740 | . . . 4 ⊢ (Inv‘𝐶) = (Inv‘𝐶) | |
| 3 | rngcsect.u | . . . . 5 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 4 | rngcsect.c | . . . . . 6 ⊢ 𝐶 = (RngCat‘𝑈) | |
| 5 | 4 | rngccat 20613 | . . . . 5 ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat) |
| 6 | 3, 5 | syl 17 | . . . 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 17730 | . . 3 ⊢ (𝜑 → (𝑋𝐼𝑌) = dom (𝑋(Inv‘𝐶)𝑌)) |
| 11 | 10 | eleq2d 2826 | . 2 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 12 | 1, 2, 6, 7, 8 | invfun 17729 | . . . . 5 ⊢ (𝜑 → Fun (𝑋(Inv‘𝐶)𝑌)) |
| 13 | funfvbrb 6999 | . . . . 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 17 | . . . 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 20616 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹))) |
| 16 | simpl 483 | . . . . 5 ⊢ ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌)) | |
| 17 | 15, 16 | biimtrdi 254 | . . . 4 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 18 | 14, 17 | sylbid 241 | . . 3 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 19 | eqid 2740 | . . . 4 ⊢ ◡𝐹 = ◡𝐹 | |
| 20 | 4, 1, 3, 7, 8, 2 | rngcinv 20616 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹))) |
| 21 | funrel 6509 | . . . . . . 7 ⊢ (Fun (𝑋(Inv‘𝐶)𝑌) → Rel (𝑋(Inv‘𝐶)𝑌)) | |
| 22 | 12, 21 | syl 17 | . . . . . 6 ⊢ (𝜑 → Rel (𝑋(Inv‘𝐶)𝑌)) |
| 23 | releldm 5893 | . . . . . . 7 ⊢ ((Rel (𝑋(Inv‘𝐶)𝑌) ∧ 𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌)) | |
| 24 | 23 | ex 413 | . . . . . 6 ⊢ (Rel (𝑋(Inv‘𝐶)𝑌) → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 25 | 22, 24 | syl 17 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 26 | 20, 25 | sylbird 261 | . . . 4 ⊢ (𝜑 → ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 27 | 19, 26 | mpan2i 703 | . . 3 ⊢ (𝜑 → (𝐹 ∈ (𝑋 RngIso 𝑌) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 28 | 18, 27 | impbid 213 | . 2 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 29 | 11, 28 | bitrd 280 | 1 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 207 ∧ wa 396 = wceq 1547 ∈ wcel 2119 class class class wbr 5079 ◡ccnv 5624 dom cdm 5625 Rel wrel 5630 Fun wfun 6486 ‘cfv 6492 (class class class)co 7363 Basecbs 17177 Catccat 17628 Invcinv 17710 Isociso 17711 RngIso crngim 20413 RngCatcrngc 20595 |
| 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 2712 ax-rep 5206 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 ax-cnex 11092 ax-resscn 11093 ax-1cn 11094 ax-icn 11095 ax-addcl 11096 ax-addrcl 11097 ax-mulcl 11098 ax-mulrcl 11099 ax-mulcom 11100 ax-addass 11101 ax-mulass 11102 ax-distr 11103 ax-i2m1 11104 ax-1ne0 11105 ax-1rid 11106 ax-rnegex 11107 ax-rrecex 11108 ax-cnre 11109 ax-pre-lttri 11110 ax-pre-lttrn 11111 ax-pre-ltadd 11112 ax-pre-mulgt0 11113 |
| 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 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-nel 3040 df-ral 3055 df-rex 3065 df-rmo 3345 df-reu 3346 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-tp 4567 df-op 4569 df-uni 4846 df-iun 4930 df-br 5080 df-opab 5142 df-mpt 5161 df-tr 5187 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7320 df-ov 7366 df-oprab 7367 df-mpo 7368 df-om 7814 df-1st 7938 df-2nd 7939 df-frecs 8228 df-wrecs 8259 df-recs 8308 df-rdg 8346 df-1o 8402 df-er 8640 df-map 8772 df-pm 8773 df-ixp 8843 df-en 8891 df-dom 8892 df-sdom 8893 df-fin 8894 df-pnf 11179 df-mnf 11180 df-xr 11181 df-ltxr 11182 df-le 11183 df-sub 11377 df-neg 11378 df-nn 12173 df-2 12242 df-3 12243 df-4 12244 df-5 12245 df-6 12246 df-7 12247 df-8 12248 df-9 12249 df-n0 12436 df-z 12523 df-dec 12643 df-uz 12787 df-fz 13460 df-struct 17115 df-sets 17132 df-slot 17150 df-ndx 17162 df-base 17178 df-ress 17199 df-plusg 17231 df-hom 17242 df-cco 17243 df-0g 17402 df-cat 17632 df-cid 17633 df-homf 17634 df-sect 17712 df-inv 17713 df-iso 17714 df-ssc 17775 df-resc 17776 df-subc 17777 df-estrc 18087 df-mgm 18606 df-mgmhm 18658 df-sgrp 18685 df-mnd 18701 df-mhm 18749 df-grp 18910 df-ghm 19186 df-abl 19756 df-mgp 20120 df-rng 20132 df-rnghm 20414 df-rngim 20415 df-rngc 20596 |
| This theorem is referenced by: (None) |
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