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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 2770 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18805 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18727 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1568 ∈ wcel 2150 ‘cfv 6540 Basecbs 17272 +gcplusg 17313 0gc0g 17495 Mndcmnd 18795 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pr 5408 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-ral 3087 df-rex 3097 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 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 4878 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5560 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-iota 6496 df-fun 6542 df-fv 6548 df-riota 7371 df-ov 7417 df-0g 17497 df-mgm 18701 df-sgrp 18780 df-mnd 18796 |
| This theorem is referenced by: mndbn0 18811 hashfinmndnn 18812 mndpfo 18818 mndpsuppss 18826 prdsidlem 18830 imasmnd 18836 xpsmnd0 18839 idmhm 18856 mhmf1o 18857 mndvlid 18860 mndvrid 18861 issubmd 18867 submid 18871 0subm 18879 0mhm 18881 mhmco 18885 mhmeql 18888 submacs 18889 mndind 18890 prdspjmhm 18891 pwsdiagmhm 18893 pwsco1mhm 18894 pwsco2mhm 18895 gsumvallem2 18896 dfgrp2 19032 grpidcl 19035 mhmid 19132 mhmmnd 19133 mulgnn0cl 19159 mulgnn0z 19170 cntzsubm 19411 oppgmnd 19427 gex1 19664 mulgnn0di 19898 mulgmhm 19900 subcmn 19910 gsumval3 19980 gsumzcl2 19983 gsumzaddlem 19994 gsumzsplit 20000 gsumzmhm 20010 gsummpt1n0 20038 simpgnideld 20174 submomnd 20205 omndmul2 20206 omndmul3 20207 omndmul 20208 ogrpinv0le 20209 gsumle 20218 srgidcl 20284 srg0cl 20285 ringidcl 20351 gsummgp0 20402 c0mgm 20544 c0mhm 20545 c0snmgmhm 20547 c0snmhm 20548 pwssplit1 21163 rngqiprngimf1 21423 dsmm0cl 21873 dsmmacl 21874 mhmcompl 22255 mdet0 22746 mndifsplit 22776 gsummatr01lem3 22797 pmatcollpw3fi1lem1 22926 tmdmulg 24232 tmdgsum 24235 tsms0 24282 tsmssplit 24292 tsmsxp 24295 mndlactfo 33317 mndractfo 33319 mndlactf1o 33320 mndractf1o 33321 suppgsumssiun 33362 gsumwun 33366 cntzsnid 33370 fxpsubm 33462 slmd0vcl 33511 ply1degltdimlem 33982 lvecendof1f1o 33993 sibf0 34694 sitmcl 34711 primrootsunit1 42814 primrootscoprmpow 42816 primrootscoprbij 42819 evl1gprodd 42834 ringexp0nn 42851 aks6d1c5lem2 42855 pwssplit4 43768 mgpsumz 49091 lco0 49156 mndtccatid 50314 |
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