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Mirrors > Home > MPE Home > Th. List > mndrid | Structured version Visualization version GIF version |
Description: The identity element of a monoid is a right identity. (Contributed by NM, 18-Aug-2011.) |
Ref | Expression |
---|---|
mndlrid.b | ⊢ 𝐵 = (Base‘𝐺) |
mndlrid.p | ⊢ + = (+g‘𝐺) |
mndlrid.o | ⊢ 0 = (0g‘𝐺) |
Ref | Expression |
---|---|
mndrid | ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵) → (𝑋 + 0 ) = 𝑋) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mndlrid.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
2 | mndlrid.p | . . 3 ⊢ + = (+g‘𝐺) | |
3 | mndlrid.o | . . 3 ⊢ 0 = (0g‘𝐺) | |
4 | 1, 2, 3 | mndlrid 18385 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵) → (( 0 + 𝑋) = 𝑋 ∧ (𝑋 + 0 ) = 𝑋)) |
5 | 4 | simprd 495 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵) → (𝑋 + 0 ) = 𝑋) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2109 ‘cfv 6430 (class class class)co 7268 Basecbs 16893 +gcplusg 16943 0gc0g 17131 Mndcmnd 18366 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-sep 5226 ax-nul 5233 ax-pr 5355 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-iota 6388 df-fun 6432 df-fv 6438 df-riota 7225 df-ov 7271 df-0g 17133 df-mgm 18307 df-sgrp 18356 df-mnd 18367 |
This theorem is referenced by: mndpfo 18389 issubmnd 18393 ress0g 18394 submnd0 18395 mndinvmod 18396 prdsidlem 18398 imasmnd 18404 mndind 18447 gsumccatOLD 18460 gsumccat 18461 grprid 18591 mhmid 18677 mhmmnd 18678 mulgnn0dir 18714 cntzsubm 18923 oppgmnd 18942 lsmub1x 19232 gsumval3 19489 gsumzsplit 19509 srgbinomlem3 19759 mndvrid 21524 mndifsplit 21766 gsummatr01 21789 smadiadet 21800 pmatcollpw3fi1lem1 21916 chfacfscmulgsum 21990 chfacfpmmulgsum 21994 tsmssplit 23284 tsmsxp 23287 gsummptres 31291 gsummptres2 31292 cntzsnid 31300 slmd0vrid 31455 mndtccatid 46326 |
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