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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 2736 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18712 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18634 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ‘cfv 6498 Basecbs 17179 +gcplusg 17220 0gc0g 17402 Mndcmnd 18702 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-iota 6454 df-fun 6500 df-fv 6506 df-riota 7324 df-ov 7370 df-0g 17404 df-mgm 18608 df-sgrp 18687 df-mnd 18703 |
| This theorem is referenced by: mndbn0 18718 hashfinmndnn 18719 mndpfo 18725 mndpsuppss 18733 prdsidlem 18737 imasmnd 18743 xpsmnd0 18746 idmhm 18763 mhmf1o 18764 mndvlid 18767 mndvrid 18768 issubmd 18774 submid 18778 0subm 18785 0mhm 18787 mhmco 18791 mhmeql 18794 submacs 18795 mndind 18796 prdspjmhm 18797 pwsdiagmhm 18799 pwsco1mhm 18800 pwsco2mhm 18801 gsumvallem2 18802 dfgrp2 18938 grpidcl 18941 mhmid 19039 mhmmnd 19040 mulgnn0cl 19066 mulgnn0z 19077 cntzsubm 19313 oppgmnd 19329 gex1 19566 mulgnn0di 19800 mulgmhm 19802 subcmn 19812 gsumval3 19882 gsumzcl2 19885 gsumzaddlem 19896 gsumzsplit 19902 gsumzmhm 19912 gsummpt1n0 19940 simpgnideld 20076 submomnd 20107 omndmul2 20108 omndmul3 20109 omndmul 20110 ogrpinv0le 20111 gsumle 20120 srgidcl 20180 srg0cl 20181 ringidcl 20246 gsummgp0 20297 c0mgm 20439 c0mhm 20440 c0snmgmhm 20442 c0snmhm 20443 pwssplit1 21054 rngqiprngimf1 21298 dsmm0cl 21720 dsmmacl 21721 mhmcompl 22345 mdet0 22571 mndifsplit 22601 gsummatr01lem3 22622 pmatcollpw3fi1lem1 22751 tmdmulg 24057 tmdgsum 24060 tsms0 24107 tsmssplit 24117 tsmsxp 24120 mndlactfo 33087 mndractfo 33089 mndlactf1o 33090 mndractf1o 33091 suppgsumssiun 33133 gsumwun 33137 cntzsnid 33141 fxpsubm 33233 slmd0vcl 33282 ply1degltdimlem 33766 lvecendof1f1o 33777 sibf0 34478 sitmcl 34495 primrootsunit1 42536 primrootscoprmpow 42538 primrootscoprbij 42541 evl1gprodd 42556 ringexp0nn 42573 aks6d1c5lem2 42577 pwssplit4 43517 mgpsumz 48838 lco0 48903 mndtccatid 50062 |
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