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Mirrors > Home > MPE Home > Th. List > cntzcmn | Structured version Visualization version GIF version |
Description: The centralizer of any subset in a commutative monoid is the whole monoid. (Contributed by Mario Carneiro, 3-Oct-2015.) |
Ref | Expression |
---|---|
cntzcmn.b | ⊢ 𝐵 = (Base‘𝐺) |
cntzcmn.z | ⊢ 𝑍 = (Cntz‘𝐺) |
Ref | Expression |
---|---|
cntzcmn | ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵) → (𝑍‘𝑆) = 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cntzcmn.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
2 | cntzcmn.z | . . . 4 ⊢ 𝑍 = (Cntz‘𝐺) | |
3 | 1, 2 | cntzssv 17761 | . . 3 ⊢ (𝑍‘𝑆) ⊆ 𝐵 |
4 | 3 | a1i 11 | . 2 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵) → (𝑍‘𝑆) ⊆ 𝐵) |
5 | simpl1 1064 | . . . . . . 7 ⊢ (((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) ∧ 𝑦 ∈ 𝑆) → 𝐺 ∈ CMnd) | |
6 | simpl3 1066 | . . . . . . 7 ⊢ (((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) ∧ 𝑦 ∈ 𝑆) → 𝑥 ∈ 𝐵) | |
7 | simp2 1062 | . . . . . . . 8 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) → 𝑆 ⊆ 𝐵) | |
8 | 7 | sselda 3603 | . . . . . . 7 ⊢ (((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) ∧ 𝑦 ∈ 𝑆) → 𝑦 ∈ 𝐵) |
9 | eqid 2622 | . . . . . . . 8 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
10 | 1, 9 | cmncom 18209 | . . . . . . 7 ⊢ ((𝐺 ∈ CMnd ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥)) |
11 | 5, 6, 8, 10 | syl3anc 1326 | . . . . . 6 ⊢ (((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) ∧ 𝑦 ∈ 𝑆) → (𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥)) |
12 | 11 | ralrimiva 2966 | . . . . 5 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) → ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥)) |
13 | 1, 9, 2 | cntzel 17756 | . . . . . 6 ⊢ ((𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) → (𝑥 ∈ (𝑍‘𝑆) ↔ ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥))) |
14 | 13 | 3adant1 1079 | . . . . 5 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) → (𝑥 ∈ (𝑍‘𝑆) ↔ ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥))) |
15 | 12, 14 | mpbird 247 | . . . 4 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝐵) → 𝑥 ∈ (𝑍‘𝑆)) |
16 | 15 | 3expia 1267 | . . 3 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵) → (𝑥 ∈ 𝐵 → 𝑥 ∈ (𝑍‘𝑆))) |
17 | 16 | ssrdv 3609 | . 2 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵) → 𝐵 ⊆ (𝑍‘𝑆)) |
18 | 4, 17 | eqssd 3620 | 1 ⊢ ((𝐺 ∈ CMnd ∧ 𝑆 ⊆ 𝐵) → (𝑍‘𝑆) = 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 ∀wral 2912 ⊆ wss 3574 ‘cfv 5888 (class class class)co 6650 Basecbs 15857 +gcplusg 15941 Cntzccntz 17748 CMndccmn 18193 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-cntz 17750 df-cmn 18195 |
This theorem is referenced by: cntzcmnss 18246 cntzcmnf 18248 ablcntzd 18260 gsumadd 18323 |
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