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| Mirrors > Home > MPE Home > Th. List > mndidcl | Structured version Visualization version GIF version | ||
| Description: The identity element of a monoid belongs to the monoid. (Contributed by NM, 27-Aug-2011.) (Revised by Mario Carneiro, 27-Dec-2014.) |
| Ref | Expression |
|---|---|
| mndidcl.b | ⊢ 𝐵 = (Base‘𝐺) |
| mndidcl.o | ⊢ 0 = (0g‘𝐺) |
| Ref | Expression |
|---|---|
| mndidcl | ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mndidcl.b | . 2 ⊢ 𝐵 = (Base‘𝐺) | |
| 2 | mndidcl.o | . 2 ⊢ 0 = (0g‘𝐺) | |
| 3 | eqid 2737 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18706 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18628 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ‘cfv 6493 Basecbs 17173 +gcplusg 17214 0gc0g 17396 Mndcmnd 18696 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-iota 6449 df-fun 6495 df-fv 6501 df-riota 7318 df-ov 7364 df-0g 17398 df-mgm 18602 df-sgrp 18681 df-mnd 18697 |
| This theorem is referenced by: mndbn0 18712 hashfinmndnn 18713 mndpfo 18719 mndpsuppss 18727 prdsidlem 18731 imasmnd 18737 xpsmnd0 18740 idmhm 18757 mhmf1o 18758 mndvlid 18761 mndvrid 18762 issubmd 18768 submid 18772 0subm 18779 0mhm 18781 mhmco 18785 mhmeql 18788 submacs 18789 mndind 18790 prdspjmhm 18791 pwsdiagmhm 18793 pwsco1mhm 18794 pwsco2mhm 18795 gsumvallem2 18796 dfgrp2 18932 grpidcl 18935 mhmid 19033 mhmmnd 19034 mulgnn0cl 19060 mulgnn0z 19071 cntzsubm 19307 oppgmnd 19323 gex1 19560 mulgnn0di 19794 mulgmhm 19796 subcmn 19806 gsumval3 19876 gsumzcl2 19879 gsumzaddlem 19890 gsumzsplit 19896 gsumzmhm 19906 gsummpt1n0 19934 simpgnideld 20070 submomnd 20101 omndmul2 20102 omndmul3 20103 omndmul 20104 ogrpinv0le 20105 gsumle 20114 srgidcl 20174 srg0cl 20175 ringidcl 20240 gsummgp0 20291 c0mgm 20433 c0mhm 20434 c0snmgmhm 20436 c0snmhm 20437 pwssplit1 21049 rngqiprngimf1 21293 dsmm0cl 21733 dsmmacl 21734 mhmcompl 22358 mdet0 22584 mndifsplit 22614 gsummatr01lem3 22635 pmatcollpw3fi1lem1 22764 tmdmulg 24070 tmdgsum 24073 tsms0 24120 tsmssplit 24130 tsmsxp 24133 mndlactfo 33105 mndractfo 33107 mndlactf1o 33108 mndractf1o 33109 suppgsumssiun 33151 gsumwun 33155 cntzsnid 33159 fxpsubm 33251 slmd0vcl 33300 ply1degltdimlem 33785 lvecendof1f1o 33796 sibf0 34497 sitmcl 34514 primrootsunit1 42553 primrootscoprmpow 42555 primrootscoprbij 42558 evl1gprodd 42573 ringexp0nn 42590 aks6d1c5lem2 42594 pwssplit4 43538 mgpsumz 48853 lco0 48918 mndtccatid 50077 |
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