Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > grpsubid1 | Structured version Visualization version GIF version |
Description: Subtraction of the identity from a group element. (Contributed by Mario Carneiro, 14-Jan-2015.) |
Ref | Expression |
---|---|
grpsubid.b | ⊢ 𝐵 = (Base‘𝐺) |
grpsubid.o | ⊢ 0 = (0g‘𝐺) |
grpsubid.m | ⊢ − = (-g‘𝐺) |
Ref | Expression |
---|---|
grpsubid1 | ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋 − 0 ) = 𝑋) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . . 3 ⊢ (𝑋 ∈ 𝐵 → 𝑋 ∈ 𝐵) | |
2 | grpsubid.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
3 | grpsubid.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
4 | 2, 3 | grpidcl 18522 | . . 3 ⊢ (𝐺 ∈ Grp → 0 ∈ 𝐵) |
5 | eqid 2738 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
6 | eqid 2738 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
7 | grpsubid.m | . . . 4 ⊢ − = (-g‘𝐺) | |
8 | 2, 5, 6, 7 | grpsubval 18540 | . . 3 ⊢ ((𝑋 ∈ 𝐵 ∧ 0 ∈ 𝐵) → (𝑋 − 0 ) = (𝑋(+g‘𝐺)((invg‘𝐺)‘ 0 ))) |
9 | 1, 4, 8 | syl2anr 596 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋 − 0 ) = (𝑋(+g‘𝐺)((invg‘𝐺)‘ 0 ))) |
10 | 3, 6 | grpinvid 18551 | . . . 4 ⊢ (𝐺 ∈ Grp → ((invg‘𝐺)‘ 0 ) = 0 ) |
11 | 10 | adantr 480 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → ((invg‘𝐺)‘ 0 ) = 0 ) |
12 | 11 | oveq2d 7271 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋(+g‘𝐺)((invg‘𝐺)‘ 0 )) = (𝑋(+g‘𝐺) 0 )) |
13 | 2, 5, 3 | grprid 18525 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋(+g‘𝐺) 0 ) = 𝑋) |
14 | 9, 12, 13 | 3eqtrd 2782 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋 − 0 ) = 𝑋) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ‘cfv 6418 (class class class)co 7255 Basecbs 16840 +gcplusg 16888 0gc0g 17067 Grpcgrp 18492 invgcminusg 18493 -gcsg 18494 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-1st 7804 df-2nd 7805 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-sbg 18497 |
This theorem is referenced by: odmod 19069 sylow3lem1 19147 telgsums 19509 dprdfeq0 19540 chp0mat 21903 tsmsxplem1 23212 tngnm 23721 ply1divex 25206 ply1remlem 25232 qqhcn 31841 lcfrlem33 39516 |
Copyright terms: Public domain | W3C validator |