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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 2730 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18644 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18566 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2110 ‘cfv 6477 Basecbs 17112 +gcplusg 17153 0gc0g 17335 Mndcmnd 18634 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2112 ax-9 2120 ax-10 2143 ax-11 2159 ax-12 2179 ax-ext 2702 ax-sep 5232 ax-nul 5242 ax-pr 5368 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-ral 3046 df-rex 3055 df-rmo 3344 df-reu 3345 df-rab 3394 df-v 3436 df-sbc 3740 df-dif 3903 df-un 3905 df-ss 3917 df-nul 4282 df-if 4474 df-sn 4575 df-pr 4577 df-op 4581 df-uni 4858 df-br 5090 df-opab 5152 df-mpt 5171 df-id 5509 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-iota 6433 df-fun 6479 df-fv 6485 df-riota 7298 df-ov 7344 df-0g 17337 df-mgm 18540 df-sgrp 18619 df-mnd 18635 |
| This theorem is referenced by: mndbn0 18650 hashfinmndnn 18651 mndpfo 18657 mndpsuppss 18665 prdsidlem 18669 imasmnd 18675 xpsmnd0 18678 idmhm 18695 mhmf1o 18696 mndvlid 18699 mndvrid 18700 issubmd 18706 submid 18710 0subm 18717 0mhm 18719 mhmco 18723 mhmeql 18726 submacs 18727 mndind 18728 prdspjmhm 18729 pwsdiagmhm 18731 pwsco1mhm 18732 pwsco2mhm 18733 gsumvallem2 18734 dfgrp2 18867 grpidcl 18870 mhmid 18968 mhmmnd 18969 mulgnn0cl 18995 mulgnn0z 19006 cntzsubm 19243 oppgmnd 19259 gex1 19496 mulgnn0di 19730 mulgmhm 19732 subcmn 19742 gsumval3 19812 gsumzcl2 19815 gsumzaddlem 19826 gsumzsplit 19832 gsumzmhm 19842 gsummpt1n0 19870 simpgnideld 20006 submomnd 20037 omndmul2 20038 omndmul3 20039 omndmul 20040 ogrpinv0le 20041 gsumle 20050 srgidcl 20110 srg0cl 20111 ringidcl 20176 gsummgp0 20229 c0mgm 20370 c0mhm 20371 c0snmgmhm 20373 c0snmhm 20374 pwssplit1 20986 rngqiprngimf1 21230 dsmm0cl 21670 dsmmacl 21671 mhmcompl 22288 mdet0 22514 mndifsplit 22544 gsummatr01lem3 22565 pmatcollpw3fi1lem1 22694 tmdmulg 24000 tmdgsum 24003 tsms0 24050 tsmssplit 24060 tsmsxp 24063 mndlactfo 32998 mndractfo 33000 mndlactf1o 33001 mndractf1o 33002 gsumwun 33035 cntzsnid 33039 fxpsubm 33131 slmd0vcl 33180 ply1degltdimlem 33625 lvecendof1f1o 33636 sibf0 34337 sitmcl 34354 primrootsunit1 42109 primrootscoprmpow 42111 primrootscoprbij 42114 evl1gprodd 42129 ringexp0nn 42146 aks6d1c5lem2 42150 pwssplit4 43101 mgpsumz 48372 lco0 48438 mndtccatid 49598 |
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