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Theorem grpridd 19161
Description: The identity element of a group is a right identity. Deduction associated with grprid 19159. (Contributed by SN, 29-Jan-2025.)
Hypotheses
Ref Expression
grpbn0.b 𝐵 = (Base‘𝐺)
grplid.p + = (+g‘𝐺)
grplid.o 0 = (0g‘𝐺)
grplidd.g (𝜑 → 𝐺 ∈ Grp)
grplidd.1 (𝜑 → 𝑋 ∈ 𝐵)
Assertion
Ref Expression
grpridd (𝜑 → (𝑋 + 0 ) = 𝑋)

Proof of Theorem grpridd
StepHypRef Expression
1 grplidd.g . 2 (𝜑 → 𝐺 ∈ Grp)
2 grplidd.1 . 2 (𝜑 → 𝑋 ∈ 𝐵)
3 grpbn0.b . . 3 𝐵 = (Base‘𝐺)
4 grplid.p . . 3 + = (+g‘𝐺)
5 grplid.o . . 3 0 = (0g‘𝐺)
63, 4, 5grprid 19159 . 2 ((𝐺 ∈ Grp ∧ 𝑋 ∈ 𝐵) → (𝑋 + 0 ) = 𝑋)
71, 2, 6syl2anc 596 1 (𝜑 → (𝑋 + 0 ) = 𝑋)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2145  ‘cfv 6531  (class class class)co 7412  Basecbs 17367  +gcplusg 17408  0gc0g 17590  Grpcgrp 19124
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-sep 5249  ax-nul 5260  ax-pr 5391
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rmo 3366  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-iota 6487  df-fun 6533  df-fv 6539  df-riota 7369  df-ov 7415  df-0g 17592  df-mgm 18796  df-sgrp 18888  df-mnd 18904  df-grp 19127
This theorem is used by:  grprcan  19164  ghmqusnsglem1  19474  ablsubaddsub  20008  rnglidlmcl  21475  rloccring  33814  ressply1evls1  34079  evl1deg1  34090  evl1deg2  34091  evl1deg3  34092  mplgsum  34167  esplyind  34189  esplyfvn  34191  irredminply  34330  rtelextdg2lem  34340  primrootscoprmpow  43117  primrootscoprbij  43120
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