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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 18567 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵) → (( 0 + 𝑋) = 𝑋 ∧ (𝑋 + 0 ) = 𝑋)) |
5 | 4 | simprd 496 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵) → (𝑋 + 0 ) = 𝑋) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ‘cfv 6493 (class class class)co 7353 Basecbs 17075 +gcplusg 17125 0gc0g 17313 Mndcmnd 18548 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5254 ax-nul 5261 ax-pr 5382 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-ral 3063 df-rex 3072 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3445 df-sbc 3738 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4281 df-if 4485 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4864 df-br 5104 df-opab 5166 df-mpt 5187 df-id 5529 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-iota 6445 df-fun 6495 df-fv 6501 df-riota 7309 df-ov 7356 df-0g 17315 df-mgm 18489 df-sgrp 18538 df-mnd 18549 |
This theorem is referenced by: mndpfo 18571 issubmnd 18575 ress0g 18576 submnd0 18577 mndinvmod 18578 prdsidlem 18580 imasmnd 18586 mndind 18630 gsumccat 18643 grprid 18773 mhmid 18859 mhmmnd 18860 mulgnn0dir 18897 cntzsubm 19107 oppgmnd 19126 lsmub1x 19419 gsumval3 19675 gsumzsplit 19695 srgbinomlem3 19945 mndvrid 21727 mndifsplit 21969 gsummatr01 21992 smadiadet 22003 pmatcollpw3fi1lem1 22119 chfacfscmulgsum 22193 chfacfpmmulgsum 22197 tsmssplit 23487 tsmsxp 23490 gsummptres 31777 gsummptres2 31778 cntzsnid 31786 slmd0vrid 31941 mndtccatid 47045 |
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