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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 2737 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | 1, 3 | mndid 18681 | . 2 ⊢ (𝐺 ∈ Mnd → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)) |
| 5 | 1, 2, 3, 4 | mgmidcl 18603 | 1 ⊢ (𝐺 ∈ Mnd → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ‘cfv 6500 Basecbs 17148 +gcplusg 17189 0gc0g 17371 Mndcmnd 18671 |
| 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 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-iota 6456 df-fun 6502 df-fv 6508 df-riota 7325 df-ov 7371 df-0g 17373 df-mgm 18577 df-sgrp 18656 df-mnd 18672 |
| This theorem is referenced by: mndbn0 18687 hashfinmndnn 18688 mndpfo 18694 mndpsuppss 18702 prdsidlem 18706 imasmnd 18712 xpsmnd0 18715 idmhm 18732 mhmf1o 18733 mndvlid 18736 mndvrid 18737 issubmd 18743 submid 18747 0subm 18754 0mhm 18756 mhmco 18760 mhmeql 18763 submacs 18764 mndind 18765 prdspjmhm 18766 pwsdiagmhm 18768 pwsco1mhm 18769 pwsco2mhm 18770 gsumvallem2 18771 dfgrp2 18904 grpidcl 18907 mhmid 19005 mhmmnd 19006 mulgnn0cl 19032 mulgnn0z 19043 cntzsubm 19279 oppgmnd 19295 gex1 19532 mulgnn0di 19766 mulgmhm 19768 subcmn 19778 gsumval3 19848 gsumzcl2 19851 gsumzaddlem 19862 gsumzsplit 19868 gsumzmhm 19878 gsummpt1n0 19906 simpgnideld 20042 submomnd 20073 omndmul2 20074 omndmul3 20075 omndmul 20076 ogrpinv0le 20077 gsumle 20086 srgidcl 20146 srg0cl 20147 ringidcl 20212 gsummgp0 20265 c0mgm 20407 c0mhm 20408 c0snmgmhm 20410 c0snmhm 20411 pwssplit1 21023 rngqiprngimf1 21267 dsmm0cl 21707 dsmmacl 21708 mhmcompl 22336 mdet0 22562 mndifsplit 22592 gsummatr01lem3 22613 pmatcollpw3fi1lem1 22742 tmdmulg 24048 tmdgsum 24051 tsms0 24098 tsmssplit 24108 tsmsxp 24111 mndlactfo 33120 mndractfo 33122 mndlactf1o 33123 mndractf1o 33124 suppgsumssiun 33166 gsumwun 33170 cntzsnid 33174 fxpsubm 33266 slmd0vcl 33315 ply1degltdimlem 33800 lvecendof1f1o 33811 sibf0 34512 sitmcl 34529 primrootsunit1 42467 primrootscoprmpow 42469 primrootscoprbij 42472 evl1gprodd 42487 ringexp0nn 42504 aks6d1c5lem2 42508 pwssplit4 43446 mgpsumz 48722 lco0 48787 mndtccatid 49946 |
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