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Theorem isabld 14192
Description: Properties that determine an Abelian group. (Contributed by NM, 6-Aug-2013.)
Hypotheses
Ref Expression
isabld.b (𝜑 → 𝐵 = (Base‘𝐺))
isabld.p (𝜑 → + = (+g‘𝐺))
isabld.g (𝜑 → 𝐺 ∈ Grp)
isabld.c ((𝜑 ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) = (𝑦 + 𝑥))
Assertion
Ref Expression
isabld (𝜑 → 𝐺 ∈ Abel)
Distinct variable groups:   𝑥,𝑦,𝐵   𝑥,𝐺,𝑦   𝜑,𝑥,𝑦
Allowed substitution hints:   + (𝑥, 𝑦)

Proof of Theorem isabld
StepHypRef Expression
1 isabld.g . 2 (𝜑 → 𝐺 ∈ Grp)
2 isabld.b . . 3 (𝜑 → 𝐵 = (Base‘𝐺))
3 isabld.p . . 3 (𝜑 → + = (+g‘𝐺))
41grpmndd 13877 . . 3 (𝜑 → 𝐺 ∈ Mnd)
5 isabld.c . . 3 ((𝜑 ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) = (𝑦 + 𝑥))
62, 3, 4, 5iscmnd 14191 . 2 (𝜑 → 𝐺 ∈ CMnd)
7 isabl 14181 . 2 (𝐺 ∈ Abel ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ CMnd))
81, 6, 7sylanbrc 421 1 (𝜑 → 𝐺 ∈ Abel)
Colors of variables:    wff set class
This proof depends on syntax axioms:   → wi 4   ∧ w3a 1009   = wceq 1402   ∈ wcel 2209  ‘cfv 5380  (class class class)co 6088  Basecbs 13410  +gcplusg 13490  Grpcgrp 13864  CMndccmn 14177  Abelcabl 14178
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-un 3224  df-in 3226  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-br 4132  df-iota 5340  df-fv 5388  df-ov 6091  df-grp 13867  df-cmn 14179  df-abl 14180
This theorem is used by:  subgabl  14226  ablressid  14229  ringabl  14444  lmodabl  14780
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