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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 2769 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18801 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18723 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ∈ wcel 2149 ‘cfv 6537 Basecbs 17268 +gcplusg 17309 0gc0g 17491 Mndcmnd 18791 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-iota 6493 df-fun 6539 df-fv 6545 df-riota 7368 df-ov 7414 df-0g 17493 df-mgm 18697 df-sgrp 18776 df-mnd 18792 |
| This theorem is referenced by: mndbn0 18807 hashfinmndnn 18808 mndpfo 18814 mndpsuppss 18822 prdsidlem 18826 imasmnd 18832 xpsmnd0 18835 idmhm 18852 mhmf1o 18853 mndvlid 18856 mndvrid 18857 issubmd 18863 submid 18867 0subm 18875 0mhm 18877 mhmco 18881 mhmeql 18884 submacs 18885 mndind 18886 prdspjmhm 18887 pwsdiagmhm 18889 pwsco1mhm 18890 pwsco2mhm 18891 gsumvallem2 18892 dfgrp2 19028 grpidcl 19031 mhmid 19128 mhmmnd 19129 mulgnn0cl 19155 mulgnn0z 19166 cntzsubm 19407 oppgmnd 19423 gex1 19660 mulgnn0di 19894 mulgmhm 19896 subcmn 19906 gsumval3 19976 gsumzcl2 19979 gsumzaddlem 19990 gsumzsplit 19996 gsumzmhm 20006 gsummpt1n0 20034 simpgnideld 20170 submomnd 20201 omndmul2 20202 omndmul3 20203 omndmul 20204 ogrpinv0le 20205 gsumle 20214 srgidcl 20280 srg0cl 20281 ringidcl 20347 gsummgp0 20398 c0mgm 20540 c0mhm 20541 c0snmgmhm 20543 c0snmhm 20544 pwssplit1 21157 rngqiprngimf1 21410 dsmm0cl 21858 dsmmacl 21859 mhmcompl 22240 mdet0 22731 mndifsplit 22761 gsummatr01lem3 22782 pmatcollpw3fi1lem1 22911 tmdmulg 24217 tmdgsum 24220 tsms0 24267 tsmssplit 24277 tsmsxp 24280 mndlactfo 33287 mndractfo 33289 mndlactf1o 33290 mndractf1o 33291 suppgsumssiun 33332 gsumwun 33336 cntzsnid 33340 fxpsubm 33432 slmd0vcl 33481 ply1degltdimlem 33956 lvecendof1f1o 33967 sibf0 34668 sitmcl 34685 primrootsunit1 42753 primrootscoprmpow 42755 primrootscoprbij 42758 evl1gprodd 42773 ringexp0nn 42790 aks6d1c5lem2 42794 pwssplit4 43707 mgpsumz 49026 lco0 49091 mndtccatid 50249 |
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