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Mirrors > Home > MPE Home > Th. List > cntzsnval | Structured version Visualization version GIF version |
Description: Special substitution for the centralizer of a singleton. (Contributed by Stefan O'Rear, 5-Sep-2015.) |
Ref | Expression |
---|---|
cntzfval.b | ⊢ 𝐵 = (Base‘𝑀) |
cntzfval.p | ⊢ + = (+g‘𝑀) |
cntzfval.z | ⊢ 𝑍 = (Cntz‘𝑀) |
Ref | Expression |
---|---|
cntzsnval | ⊢ (𝑌 ∈ 𝐵 → (𝑍‘{𝑌}) = {𝑥 ∈ 𝐵 ∣ (𝑥 + 𝑌) = (𝑌 + 𝑥)}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | snssi 4733 | . . 3 ⊢ (𝑌 ∈ 𝐵 → {𝑌} ⊆ 𝐵) | |
2 | cntzfval.b | . . . 4 ⊢ 𝐵 = (Base‘𝑀) | |
3 | cntzfval.p | . . . 4 ⊢ + = (+g‘𝑀) | |
4 | cntzfval.z | . . . 4 ⊢ 𝑍 = (Cntz‘𝑀) | |
5 | 2, 3, 4 | cntzval 18389 | . . 3 ⊢ ({𝑌} ⊆ 𝐵 → (𝑍‘{𝑌}) = {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ {𝑌} (𝑥 + 𝑦) = (𝑦 + 𝑥)}) |
6 | 1, 5 | syl 17 | . 2 ⊢ (𝑌 ∈ 𝐵 → (𝑍‘{𝑌}) = {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ {𝑌} (𝑥 + 𝑦) = (𝑦 + 𝑥)}) |
7 | oveq2 7153 | . . . . 5 ⊢ (𝑦 = 𝑌 → (𝑥 + 𝑦) = (𝑥 + 𝑌)) | |
8 | oveq1 7152 | . . . . 5 ⊢ (𝑦 = 𝑌 → (𝑦 + 𝑥) = (𝑌 + 𝑥)) | |
9 | 7, 8 | eqeq12d 2834 | . . . 4 ⊢ (𝑦 = 𝑌 → ((𝑥 + 𝑦) = (𝑦 + 𝑥) ↔ (𝑥 + 𝑌) = (𝑌 + 𝑥))) |
10 | 9 | ralsng 4605 | . . 3 ⊢ (𝑌 ∈ 𝐵 → (∀𝑦 ∈ {𝑌} (𝑥 + 𝑦) = (𝑦 + 𝑥) ↔ (𝑥 + 𝑌) = (𝑌 + 𝑥))) |
11 | 10 | rabbidv 3478 | . 2 ⊢ (𝑌 ∈ 𝐵 → {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ {𝑌} (𝑥 + 𝑦) = (𝑦 + 𝑥)} = {𝑥 ∈ 𝐵 ∣ (𝑥 + 𝑌) = (𝑌 + 𝑥)}) |
12 | 6, 11 | eqtrd 2853 | 1 ⊢ (𝑌 ∈ 𝐵 → (𝑍‘{𝑌}) = {𝑥 ∈ 𝐵 ∣ (𝑥 + 𝑌) = (𝑌 + 𝑥)}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1528 ∈ wcel 2105 ∀wral 3135 {crab 3139 ⊆ wss 3933 {csn 4557 ‘cfv 6348 (class class class)co 7145 Basecbs 16471 +gcplusg 16553 Cntzccntz 18383 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2790 ax-rep 5181 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3an 1081 df-tru 1531 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2615 df-eu 2647 df-clab 2797 df-cleq 2811 df-clel 2890 df-nfc 2960 df-ne 3014 df-ral 3140 df-rex 3141 df-reu 3142 df-rab 3144 df-v 3494 df-sbc 3770 df-csb 3881 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-nul 4289 df-if 4464 df-pw 4537 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-id 5453 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-ov 7148 df-cntz 18385 |
This theorem is referenced by: elcntzsn 18393 cntziinsn 18403 |
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