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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 2756 | . . . 4 ⊢ (Inv‘𝐶) = (Inv‘𝐶) | |
| 3 | rngcsect.u | . . . . 5 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 4 | rngcsect.c | . . . . . 6 ⊢ 𝐶 = (RngCat‘𝑈) | |
| 5 | 4 | rngccat 20656 | . . . . 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 17774 | . . 3 ⊢ (𝜑 → (𝑋𝐼𝑌) = dom (𝑋(Inv‘𝐶)𝑌)) |
| 11 | 10 | eleq2d 2842 | . 2 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 12 | 1, 2, 6, 7, 8 | invfun 17773 | . . . . 5 ⊢ (𝜑 → Fun (𝑋(Inv‘𝐶)𝑌)) |
| 13 | funfvbrb 7021 | . . . . 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 20659 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹))) |
| 16 | simpl 485 | . . . . 5 ⊢ ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ((𝑋(Inv‘𝐶)𝑌)‘𝐹) = ◡𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌)) | |
| 17 | 15, 16 | biimtrdi 255 | . . . 4 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)((𝑋(Inv‘𝐶)𝑌)‘𝐹) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 18 | 14, 17 | sylbid 242 | . . 3 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) → 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 19 | eqid 2756 | . . . 4 ⊢ ◡𝐹 = ◡𝐹 | |
| 20 | 4, 1, 3, 7, 8, 2 | rngcinv 20659 | . . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹 ↔ (𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹))) |
| 21 | funrel 6527 | . . . . . . 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 5913 | . . . . . . 7 ⊢ ((Rel (𝑋(Inv‘𝐶)𝑌) ∧ 𝐹(𝑋(Inv‘𝐶)𝑌)◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌)) | |
| 24 | 23 | ex 415 | . . . . . 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 262 | . . . 4 ⊢ (𝜑 → ((𝐹 ∈ (𝑋 RngIso 𝑌) ∧ ◡𝐹 = ◡𝐹) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 27 | 19, 26 | mpan2i 705 | . . 3 ⊢ (𝜑 → (𝐹 ∈ (𝑋 RngIso 𝑌) → 𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌))) |
| 28 | 18, 27 | impbid 214 | . 2 ⊢ (𝜑 → (𝐹 ∈ dom (𝑋(Inv‘𝐶)𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| 29 | 11, 28 | bitrd 281 | 1 ⊢ (𝜑 → (𝐹 ∈ (𝑋𝐼𝑌) ↔ 𝐹 ∈ (𝑋 RngIso 𝑌))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1554 ∈ wcel 2136 class class class wbr 5094 ◡ccnv 5639 dom cdm 5640 Rel wrel 5645 Fun wfun 6504 ‘cfv 6510 (class class class)co 7385 Basecbs 17221 Catccat 17672 Invcinv 17754 Isociso 17755 RngIso crngim 20456 RngCatcrngc 20638 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-rmo 3361 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-iun 4945 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-om 7836 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-1o 8425 df-er 8666 df-map 8798 df-pm 8799 df-ixp 8869 df-en 8917 df-dom 8918 df-sdom 8919 df-fin 8920 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-nn 12201 df-2 12270 df-3 12271 df-4 12272 df-5 12273 df-6 12274 df-7 12275 df-8 12276 df-9 12277 df-n0 12472 df-z 12559 df-dec 12679 df-uz 12830 df-fz 13503 df-struct 17159 df-sets 17176 df-slot 17194 df-ndx 17206 df-base 17222 df-ress 17243 df-plusg 17275 df-hom 17286 df-cco 17287 df-0g 17446 df-cat 17676 df-cid 17677 df-homf 17678 df-sect 17756 df-inv 17757 df-iso 17758 df-ssc 17819 df-resc 17820 df-subc 17821 df-estrc 18131 df-mgm 18650 df-mgmhm 18702 df-sgrp 18729 df-mnd 18745 df-mhm 18793 df-grp 18954 df-ghm 19230 df-abl 19799 df-mgp 20163 df-rng 20175 df-rnghm 20457 df-rngim 20458 df-rngc 20639 |
| This theorem is referenced by: (None) |
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