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| Mirrors > Home > MPE Home > Th. List > cntrabl | Structured version Visualization version GIF version | ||
| Description: The center of a group is an abelian group. (Contributed by Thierry Arnoux, 21-Aug-2023.) |
| Ref | Expression |
|---|---|
| cntrcmnd.z | ⊢ 𝑍 = (𝑀 ↾s (Cntr‘𝑀)) |
| Ref | Expression |
|---|---|
| cntrabl | ⊢ (𝑀 ∈ Grp → 𝑍 ∈ Abel) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2769 | . . . . 5 ⊢ (Base‘𝑀) = (Base‘𝑀) | |
| 2 | eqid 2769 | . . . . 5 ⊢ (Cntz‘𝑀) = (Cntz‘𝑀) | |
| 3 | 1, 2 | cntrval 19389 | . . . 4 ⊢ ((Cntz‘𝑀)‘(Base‘𝑀)) = (Cntr‘𝑀) |
| 4 | ssid 3965 | . . . . 5 ⊢ (Base‘𝑀) ⊆ (Base‘𝑀) | |
| 5 | 1, 2 | cntzsubg 19409 | . . . . 5 ⊢ ((𝑀 ∈ Grp ∧ (Base‘𝑀) ⊆ (Base‘𝑀)) → ((Cntz‘𝑀)‘(Base‘𝑀)) ∈ (SubGrp‘𝑀)) |
| 6 | 4, 5 | mpan2 703 | . . . 4 ⊢ (𝑀 ∈ Grp → ((Cntz‘𝑀)‘(Base‘𝑀)) ∈ (SubGrp‘𝑀)) |
| 7 | 3, 6 | eqeltrrid 2874 | . . 3 ⊢ (𝑀 ∈ Grp → (Cntr‘𝑀) ∈ (SubGrp‘𝑀)) |
| 8 | cntrcmnd.z | . . . 4 ⊢ 𝑍 = (𝑀 ↾s (Cntr‘𝑀)) | |
| 9 | 8 | subggrp 19195 | . . 3 ⊢ ((Cntr‘𝑀) ∈ (SubGrp‘𝑀) → 𝑍 ∈ Grp) |
| 10 | 7, 9 | syl 18 | . 2 ⊢ (𝑀 ∈ Grp → 𝑍 ∈ Grp) |
| 11 | grpmnd 19007 | . . 3 ⊢ (𝑀 ∈ Grp → 𝑀 ∈ Mnd) | |
| 12 | 8 | cntrcmnd 19912 | . . 3 ⊢ (𝑀 ∈ Mnd → 𝑍 ∈ CMnd) |
| 13 | 11, 12 | syl 18 | . 2 ⊢ (𝑀 ∈ Grp → 𝑍 ∈ CMnd) |
| 14 | isabl 19854 | . 2 ⊢ (𝑍 ∈ Abel ↔ (𝑍 ∈ Grp ∧ 𝑍 ∈ CMnd)) | |
| 15 | 10, 13, 14 | sylanbrc 594 | 1 ⊢ (𝑀 ∈ Grp → 𝑍 ∈ Abel) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ∈ wcel 2149 ⊆ wss 3911 ‘cfv 6537 (class class class)co 7411 Basecbs 17269 ↾s cress 17290 Mndcmnd 18792 Grpcgrp 19000 SubGrpcsubg 19186 Cntzccntz 19385 Cntrccntr 19386 CMndccmn 19850 Abelcabl 19851 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3375 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-2 12303 df-sets 17224 df-slot 17242 df-ndx 17254 df-base 17270 df-ress 17291 df-plusg 17323 df-0g 17494 df-mgm 18698 df-sgrp 18777 df-mnd 18793 df-submnd 18842 df-grp 19003 df-minusg 19004 df-subg 19189 df-cntz 19387 df-cntr 19388 df-cmn 19852 df-abl 19853 |
| This theorem is referenced by: simpcntrab 47511 |
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