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Mirrors > Home > MPE Home > Th. List > oppgmnd | Structured version Visualization version GIF version |
Description: The opposite of a monoid is a monoid. (Contributed by Stefan O'Rear, 26-Aug-2015.) (Revised by Mario Carneiro, 16-Sep-2015.) |
Ref | Expression |
---|---|
oppgbas.1 | ⊢ 𝑂 = (oppg‘𝑅) |
Ref | Expression |
---|---|
oppgmnd | ⊢ (𝑅 ∈ Mnd → 𝑂 ∈ Mnd) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oppgbas.1 | . . . 4 ⊢ 𝑂 = (oppg‘𝑅) | |
2 | eqid 2738 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
3 | 1, 2 | oppgbas 18956 | . . 3 ⊢ (Base‘𝑅) = (Base‘𝑂) |
4 | 3 | a1i 11 | . 2 ⊢ (𝑅 ∈ Mnd → (Base‘𝑅) = (Base‘𝑂)) |
5 | eqidd 2739 | . 2 ⊢ (𝑅 ∈ Mnd → (+g‘𝑂) = (+g‘𝑂)) | |
6 | eqid 2738 | . . . 4 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
7 | eqid 2738 | . . . 4 ⊢ (+g‘𝑂) = (+g‘𝑂) | |
8 | 6, 1, 7 | oppgplus 18953 | . . 3 ⊢ (𝑥(+g‘𝑂)𝑦) = (𝑦(+g‘𝑅)𝑥) |
9 | 2, 6 | mndcl 18393 | . . . 4 ⊢ ((𝑅 ∈ Mnd ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑦(+g‘𝑅)𝑥) ∈ (Base‘𝑅)) |
10 | 9 | 3com23 1125 | . . 3 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑦(+g‘𝑅)𝑥) ∈ (Base‘𝑅)) |
11 | 8, 10 | eqeltrid 2843 | . 2 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(+g‘𝑂)𝑦) ∈ (Base‘𝑅)) |
12 | simpl 483 | . . . . 5 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑅 ∈ Mnd) | |
13 | simpr3 1195 | . . . . 5 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑧 ∈ (Base‘𝑅)) | |
14 | simpr2 1194 | . . . . 5 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑦 ∈ (Base‘𝑅)) | |
15 | simpr1 1193 | . . . . 5 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑥 ∈ (Base‘𝑅)) | |
16 | 2, 6 | mndass 18394 | . . . . 5 ⊢ ((𝑅 ∈ Mnd ∧ (𝑧 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅))) → ((𝑧(+g‘𝑅)𝑦)(+g‘𝑅)𝑥) = (𝑧(+g‘𝑅)(𝑦(+g‘𝑅)𝑥))) |
17 | 12, 13, 14, 15, 16 | syl13anc 1371 | . . . 4 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑧(+g‘𝑅)𝑦)(+g‘𝑅)𝑥) = (𝑧(+g‘𝑅)(𝑦(+g‘𝑅)𝑥))) |
18 | 17 | eqcomd 2744 | . . 3 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑧(+g‘𝑅)(𝑦(+g‘𝑅)𝑥)) = ((𝑧(+g‘𝑅)𝑦)(+g‘𝑅)𝑥)) |
19 | 8 | oveq1i 7285 | . . . 4 ⊢ ((𝑥(+g‘𝑂)𝑦)(+g‘𝑂)𝑧) = ((𝑦(+g‘𝑅)𝑥)(+g‘𝑂)𝑧) |
20 | 6, 1, 7 | oppgplus 18953 | . . . 4 ⊢ ((𝑦(+g‘𝑅)𝑥)(+g‘𝑂)𝑧) = (𝑧(+g‘𝑅)(𝑦(+g‘𝑅)𝑥)) |
21 | 19, 20 | eqtri 2766 | . . 3 ⊢ ((𝑥(+g‘𝑂)𝑦)(+g‘𝑂)𝑧) = (𝑧(+g‘𝑅)(𝑦(+g‘𝑅)𝑥)) |
22 | 6, 1, 7 | oppgplus 18953 | . . . . 5 ⊢ (𝑦(+g‘𝑂)𝑧) = (𝑧(+g‘𝑅)𝑦) |
23 | 22 | oveq2i 7286 | . . . 4 ⊢ (𝑥(+g‘𝑂)(𝑦(+g‘𝑂)𝑧)) = (𝑥(+g‘𝑂)(𝑧(+g‘𝑅)𝑦)) |
24 | 6, 1, 7 | oppgplus 18953 | . . . 4 ⊢ (𝑥(+g‘𝑂)(𝑧(+g‘𝑅)𝑦)) = ((𝑧(+g‘𝑅)𝑦)(+g‘𝑅)𝑥) |
25 | 23, 24 | eqtri 2766 | . . 3 ⊢ (𝑥(+g‘𝑂)(𝑦(+g‘𝑂)𝑧)) = ((𝑧(+g‘𝑅)𝑦)(+g‘𝑅)𝑥) |
26 | 18, 21, 25 | 3eqtr4g 2803 | . 2 ⊢ ((𝑅 ∈ Mnd ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(+g‘𝑂)𝑦)(+g‘𝑂)𝑧) = (𝑥(+g‘𝑂)(𝑦(+g‘𝑂)𝑧))) |
27 | eqid 2738 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
28 | 2, 27 | mndidcl 18400 | . 2 ⊢ (𝑅 ∈ Mnd → (0g‘𝑅) ∈ (Base‘𝑅)) |
29 | 6, 1, 7 | oppgplus 18953 | . . 3 ⊢ ((0g‘𝑅)(+g‘𝑂)𝑥) = (𝑥(+g‘𝑅)(0g‘𝑅)) |
30 | 2, 6, 27 | mndrid 18406 | . . 3 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑥(+g‘𝑅)(0g‘𝑅)) = 𝑥) |
31 | 29, 30 | eqtrid 2790 | . 2 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅)) → ((0g‘𝑅)(+g‘𝑂)𝑥) = 𝑥) |
32 | 6, 1, 7 | oppgplus 18953 | . . 3 ⊢ (𝑥(+g‘𝑂)(0g‘𝑅)) = ((0g‘𝑅)(+g‘𝑅)𝑥) |
33 | 2, 6, 27 | mndlid 18405 | . . 3 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅)) → ((0g‘𝑅)(+g‘𝑅)𝑥) = 𝑥) |
34 | 32, 33 | eqtrid 2790 | . 2 ⊢ ((𝑅 ∈ Mnd ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑥(+g‘𝑂)(0g‘𝑅)) = 𝑥) |
35 | 4, 5, 11, 26, 28, 31, 34 | ismndd 18407 | 1 ⊢ (𝑅 ∈ Mnd → 𝑂 ∈ Mnd) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ‘cfv 6433 (class class class)co 7275 Basecbs 16912 +gcplusg 16962 0gc0g 17150 Mndcmnd 18385 oppgcoppg 18949 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-tpos 8042 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-plusg 16975 df-0g 17152 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-oppg 18950 |
This theorem is referenced by: oppgmndb 18962 oppggrp 18964 gsumwrev 18973 gsumzoppg 19545 gsumzinv 19546 oppgtmd 23248 lsmsnorb2 31580 |
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