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| Mirrors > Home > ILE Home > Th. List > subgrcl | GIF version | ||
| Description: Reverse closure for the subgroup predicate. (Contributed by Mario Carneiro, 2-Dec-2014.) |
| Ref | Expression |
|---|---|
| subgrcl | ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2232 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | 1 | issubg 13882 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) ↔ (𝐺 ∈ Grp ∧ 𝑆 ⊆ (Base‘𝐺) ∧ (𝐺 ↾s 𝑆) ∈ Grp)) |
| 3 | 2 | simp1bi 1039 | 1 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2203 ⊆ wss 3210 ‘cfv 5351 (class class class)co 6049 Basecbs 13204 ↾s cress 13205 Grpcgrp 13705 SubGrpcsubg 13876 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-cnex 8217 ax-resscn 8218 ax-1re 8220 ax-addrcl 8223 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-int 3949 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-fv 5359 df-ov 6052 df-inn 9237 df-ndx 13207 df-slot 13208 df-base 13210 df-subg 13879 |
| This theorem is referenced by: subg0 13889 subginv 13890 subgcl 13893 subgsub 13895 subgmulgcl 13896 subgmulg 13897 subgsubm 13905 subsubg 13906 subgintm 13907 isnsg 13911 nsgconj 13915 isnsg3 13916 ssnmz 13920 nmznsg 13922 eqger 13933 eqgid 13935 eqgen 13936 eqgcpbl 13937 qusgrp 13941 quseccl 13942 qusadd 13943 qus0 13944 qusinv 13945 qussub 13946 ecqusaddcl 13948 resghm 13969 resghm2 13970 resghm2b 13971 conjsubg 13986 conjsubgen 13987 conjnmz 13988 conjnmzb 13989 qusghm 13991 issubrng2 14347 issubrg2 14378 |
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