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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 2763 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18797 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18719 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 ‘cfv 6536 Basecbs 17264 +gcplusg 17305 0gc0g 17487 Mndcmnd 18787 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pr 5404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-iota 6492 df-fun 6538 df-fv 6544 df-riota 7367 df-ov 7413 df-0g 17489 df-mgm 18693 df-sgrp 18772 df-mnd 18788 |
| This theorem is referenced by: mndbn0 18803 hashfinmndnn 18804 mndpfo 18810 mndpsuppss 18818 prdsidlem 18822 imasmnd 18828 xpsmnd0 18831 idmhm 18848 mhmf1o 18849 mndvlid 18852 mndvrid 18853 issubmd 18859 submid 18863 0subm 18871 0mhm 18873 mhmco 18877 mhmeql 18880 submacs 18881 mndind 18882 prdspjmhm 18883 pwsdiagmhm 18885 pwsco1mhm 18886 pwsco2mhm 18887 gsumvallem2 18888 dfgrp2 19024 grpidcl 19027 mhmid 19124 mhmmnd 19125 mulgnn0cl 19151 mulgnn0z 19162 cntzsubm 19403 oppgmnd 19419 gex1 19656 mulgnn0di 19890 mulgmhm 19892 subcmn 19902 gsumval3 19972 gsumzcl2 19975 gsumzaddlem 19986 gsumzsplit 19992 gsumzmhm 20002 gsummpt1n0 20030 simpgnideld 20166 submomnd 20197 omndmul2 20198 omndmul3 20199 omndmul 20200 ogrpinv0le 20201 gsumle 20210 srgidcl 20276 srg0cl 20277 ringidcl 20344 gsummgp0 20395 c0mgm 20537 c0mhm 20538 c0snmgmhm 20540 c0snmhm 20541 pwssplit1 21180 rngqiprngimf1 21440 dsmm0cl 21890 dsmmacl 21891 mhmcompl 22272 mdet0 22763 mndifsplit 22793 gsummatr01lem3 22814 pmatcollpw3fi1lem1 22943 tmdmulg 24249 tmdgsum 24252 tsms0 24299 tsmssplit 24309 tsmsxp 24312 mndlactfo 33347 mndractfo 33349 mndlactf1o 33350 mndractf1o 33351 suppgsumssiun 33392 gsumwun 33396 cntzsnid 33400 fxpsubm 33492 slmd0vcl 33541 ply1degltdimlem 34012 lvecendof1f1o 34023 sibf0 34724 sitmcl 34741 primrootsunit1 42864 primrootscoprmpow 42866 primrootscoprbij 42869 evl1gprodd 42884 ringexp0nn 42901 aks6d1c5lem2 42905 pwssplit4 43816 mgpsumz 49142 lco0 49207 mndtccatid 50365 |
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