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Mirrors > Home > MPE Home > Th. List > ablsubsub23 | Structured version Visualization version GIF version |
Description: Swap subtrahend and result of group subtraction. (Contributed by NM, 14-Dec-2007.) (Revised by AV, 7-Oct-2021.) |
Ref | Expression |
---|---|
ablsubsub23.v | ⊢ 𝑉 = (Base‘𝐺) |
ablsubsub23.m | ⊢ − = (-g‘𝐺) |
Ref | Expression |
---|---|
ablsubsub23 | ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐴 − 𝐵) = 𝐶 ↔ (𝐴 − 𝐶) = 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 486 | . . . 4 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐺 ∈ Abel) | |
2 | simpr3 1193 | . . . 4 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ 𝑉) | |
3 | simpr2 1192 | . . . 4 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐵 ∈ 𝑉) | |
4 | ablsubsub23.v | . . . . 5 ⊢ 𝑉 = (Base‘𝐺) | |
5 | eqid 2798 | . . . . 5 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
6 | 4, 5 | ablcom 18916 | . . . 4 ⊢ ((𝐺 ∈ Abel ∧ 𝐶 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → (𝐶(+g‘𝐺)𝐵) = (𝐵(+g‘𝐺)𝐶)) |
7 | 1, 2, 3, 6 | syl3anc 1368 | . . 3 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐶(+g‘𝐺)𝐵) = (𝐵(+g‘𝐺)𝐶)) |
8 | 7 | eqeq1d 2800 | . 2 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐶(+g‘𝐺)𝐵) = 𝐴 ↔ (𝐵(+g‘𝐺)𝐶) = 𝐴)) |
9 | ablgrp 18903 | . . 3 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp) | |
10 | ablsubsub23.m | . . . 4 ⊢ − = (-g‘𝐺) | |
11 | 4, 5, 10 | grpsubadd 18179 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐴 − 𝐵) = 𝐶 ↔ (𝐶(+g‘𝐺)𝐵) = 𝐴)) |
12 | 9, 11 | sylan 583 | . 2 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐴 − 𝐵) = 𝐶 ↔ (𝐶(+g‘𝐺)𝐵) = 𝐴)) |
13 | 3ancomb 1096 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉) ↔ (𝐴 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉)) | |
14 | 13 | biimpi 219 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉) → (𝐴 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉)) |
15 | 4, 5, 10 | grpsubadd 18179 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉)) → ((𝐴 − 𝐶) = 𝐵 ↔ (𝐵(+g‘𝐺)𝐶) = 𝐴)) |
16 | 9, 14, 15 | syl2an 598 | . 2 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐴 − 𝐶) = 𝐵 ↔ (𝐵(+g‘𝐺)𝐶) = 𝐴)) |
17 | 8, 12, 16 | 3bitr4d 314 | 1 ⊢ ((𝐺 ∈ Abel ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → ((𝐴 − 𝐵) = 𝐶 ↔ (𝐴 − 𝐶) = 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 ‘cfv 6324 (class class class)co 7135 Basecbs 16475 +gcplusg 16557 Grpcgrp 18095 -gcsg 18097 Abelcabl 18899 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-reu 3113 df-rmo 3114 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-1st 7671 df-2nd 7672 df-0g 16707 df-mgm 17844 df-sgrp 17893 df-mnd 17904 df-grp 18098 df-minusg 18099 df-sbg 18100 df-cmn 18900 df-abl 18901 |
This theorem is referenced by: (None) |
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