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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 2231 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | 1 | issubg 13765 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) ↔ (𝐺 ∈ Grp ∧ 𝑆 ⊆ (Base‘𝐺) ∧ (𝐺 ↾s 𝑆) ∈ Grp)) |
| 3 | 2 | simp1bi 1038 | 1 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ⊆ wss 3200 ‘cfv 5326 (class class class)co 6018 Basecbs 13087 ↾s cress 13088 Grpcgrp 13588 SubGrpcsubg 13759 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-cnex 8123 ax-resscn 8124 ax-1re 8126 ax-addrcl 8129 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-fv 5334 df-ov 6021 df-inn 9144 df-ndx 13090 df-slot 13091 df-base 13093 df-subg 13762 |
| This theorem is referenced by: subg0 13772 subginv 13773 subgcl 13776 subgsub 13778 subgmulgcl 13779 subgmulg 13780 subgsubm 13788 subsubg 13789 subgintm 13790 isnsg 13794 nsgconj 13798 isnsg3 13799 ssnmz 13803 nmznsg 13805 eqger 13816 eqgid 13818 eqgen 13819 eqgcpbl 13820 qusgrp 13824 quseccl 13825 qusadd 13826 qus0 13827 qusinv 13828 qussub 13829 ecqusaddcl 13831 resghm 13852 resghm2 13853 resghm2b 13854 conjsubg 13869 conjsubgen 13870 conjnmz 13871 conjnmzb 13872 qusghm 13874 issubrng2 14230 issubrg2 14261 |
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