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Mirrors > Home > MPE Home > Th. List > isabl | Structured version Visualization version GIF version |
Description: The predicate "is an Abelian (commutative) group." (Contributed by NM, 17-Oct-2011.) |
Ref | Expression |
---|---|
isabl | ⊢ (𝐺 ∈ Abel ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ CMnd)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-abl 18911 | . 2 ⊢ Abel = (Grp ∩ CMnd) | |
2 | 1 | elin2 4176 | 1 ⊢ (𝐺 ∈ Abel ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ CMnd)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 ∈ wcel 2114 Grpcgrp 18105 CMndccmn 18908 Abelcabl 18909 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-v 3498 df-in 3945 df-abl 18911 |
This theorem is referenced by: ablgrp 18913 ablcmn 18915 isabl2 18917 ablpropd 18919 isabld 18922 ghmabl 18955 cntrabl 18965 prdsabld 18984 unitabl 19420 tsmsinv 22758 tgptsmscls 22760 tsmsxplem1 22763 tsmsxplem2 22764 abliso 30685 gicabl 39706 2zrngaabl 44222 pgrpgt2nabl 44421 |
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