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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 2238 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | 1 | issubg 13959 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) ↔ (𝐺 ∈ Grp ∧ 𝑆 ⊆ (Base‘𝐺) ∧ (𝐺 ↾s 𝑆) ∈ Grp)) |
| 3 | 2 | simp1bi 1043 | 1 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2209 ⊆ wss 3220 ‘cfv 5375 (class class class)co 6079 Basecbs 13335 ↾s cress 13336 Grpcgrp 13788 SubGrpcsubg 13953 |
| 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 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-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-cnex 8264 ax-resscn 8265 ax-1re 8267 ax-addrcl 8270 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 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-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-fv 5383 df-ov 6082 df-inn 9288 df-ndx 13338 df-slot 13339 df-base 13341 df-subg 13956 |
| This theorem is referenced by: subg0 13966 subginv 13967 subgcl 13970 subgsub 13972 subgmulgcl 13973 subgmulg 13974 subgsubm 13982 subsubg 13983 subgintm 13984 isnsg 13988 nsgconj 13992 isnsg3 13993 ssnmz 13997 nmznsg 13999 eqger 14010 eqgid 14012 eqgen 14013 eqgcpbl 14014 qusgrp 14018 quseccl 14019 qusadd 14020 qus0 14021 qusinv 14022 qussub 14023 ecqusaddcl 14025 resghm 14046 resghm2 14047 resghm2b 14048 conjsubg 14063 conjsubgen 14064 conjnmz 14065 conjnmzb 14066 qusghm 14068 issubrng2 14501 issubrg2 14532 |
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