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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 13930 | . 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 3214 ‘cfv 5357 (class class class)co 6058 Basecbs 13300 ↾s cress 13301 Grpcgrp 13759 SubGrpcsubg 13924 |
| 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 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-cnex 8234 ax-resscn 8235 ax-1re 8237 ax-addrcl 8240 |
| 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 3046 df-csb 3142 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-int 3955 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 df-iota 5317 df-fun 5359 df-fn 5360 df-fv 5365 df-ov 6061 df-inn 9258 df-ndx 13303 df-slot 13304 df-base 13306 df-subg 13927 |
| This theorem is referenced by: subg0 13937 subginv 13938 subgcl 13941 subgsub 13943 subgmulgcl 13944 subgmulg 13945 subgsubm 13953 subsubg 13954 subgintm 13955 isnsg 13959 nsgconj 13963 isnsg3 13964 ssnmz 13968 nmznsg 13970 eqger 13981 eqgid 13983 eqgen 13984 eqgcpbl 13985 qusgrp 13989 quseccl 13990 qusadd 13991 qus0 13992 qusinv 13993 qussub 13994 ecqusaddcl 13996 resghm 14017 resghm2 14018 resghm2b 14019 conjsubg 14034 conjsubgen 14035 conjnmz 14036 conjnmzb 14037 qusghm 14039 issubrng2 14460 issubrg2 14491 |
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