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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 2234 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | 1 | issubg 13907 | . 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 2205 ⊆ wss 3213 ‘cfv 5354 (class class class)co 6052 Basecbs 13229 ↾s cress 13230 Grpcgrp 13730 SubGrpcsubg 13901 |
| 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 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-cnex 8220 ax-resscn 8221 ax-1re 8223 ax-addrcl 8226 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-iota 5314 df-fun 5356 df-fn 5357 df-fv 5362 df-ov 6055 df-inn 9240 df-ndx 13232 df-slot 13233 df-base 13235 df-subg 13904 |
| This theorem is referenced by: subg0 13914 subginv 13915 subgcl 13918 subgsub 13920 subgmulgcl 13921 subgmulg 13922 subgsubm 13930 subsubg 13931 subgintm 13932 isnsg 13936 nsgconj 13940 isnsg3 13941 ssnmz 13945 nmznsg 13947 eqger 13958 eqgid 13960 eqgen 13961 eqgcpbl 13962 qusgrp 13966 quseccl 13967 qusadd 13968 qus0 13969 qusinv 13970 qussub 13971 ecqusaddcl 13973 resghm 13994 resghm2 13995 resghm2b 13996 conjsubg 14011 conjsubgen 14012 conjnmz 14013 conjnmzb 14014 qusghm 14016 issubrng2 14372 issubrg2 14403 |
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