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Mirrors > Home > MPE Home > Th. List > ismred2 | Structured version Visualization version GIF version |
Description: Properties that determine a Moore collection, using restricted intersection. (Contributed by Stefan O'Rear, 3-Apr-2015.) |
Ref | Expression |
---|---|
ismred2.ss | ⊢ (𝜑 → 𝐶 ⊆ 𝒫 𝑋) |
ismred2.in | ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶) → (𝑋 ∩ ∩ 𝑠) ∈ 𝐶) |
Ref | Expression |
---|---|
ismred2 | ⊢ (𝜑 → 𝐶 ∈ (Moore‘𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ismred2.ss | . 2 ⊢ (𝜑 → 𝐶 ⊆ 𝒫 𝑋) | |
2 | eqid 2736 | . . . 4 ⊢ ∅ = ∅ | |
3 | rint0 4928 | . . . 4 ⊢ (∅ = ∅ → (𝑋 ∩ ∩ ∅) = 𝑋) | |
4 | 2, 3 | ax-mp 5 | . . 3 ⊢ (𝑋 ∩ ∩ ∅) = 𝑋 |
5 | 0ss 4336 | . . . 4 ⊢ ∅ ⊆ 𝐶 | |
6 | 0ex 5240 | . . . . 5 ⊢ ∅ ∈ V | |
7 | sseq1 3951 | . . . . . . 7 ⊢ (𝑠 = ∅ → (𝑠 ⊆ 𝐶 ↔ ∅ ⊆ 𝐶)) | |
8 | 7 | anbi2d 630 | . . . . . 6 ⊢ (𝑠 = ∅ → ((𝜑 ∧ 𝑠 ⊆ 𝐶) ↔ (𝜑 ∧ ∅ ⊆ 𝐶))) |
9 | inteq 4889 | . . . . . . . 8 ⊢ (𝑠 = ∅ → ∩ 𝑠 = ∩ ∅) | |
10 | 9 | ineq2d 4152 | . . . . . . 7 ⊢ (𝑠 = ∅ → (𝑋 ∩ ∩ 𝑠) = (𝑋 ∩ ∩ ∅)) |
11 | 10 | eleq1d 2821 | . . . . . 6 ⊢ (𝑠 = ∅ → ((𝑋 ∩ ∩ 𝑠) ∈ 𝐶 ↔ (𝑋 ∩ ∩ ∅) ∈ 𝐶)) |
12 | 8, 11 | imbi12d 345 | . . . . 5 ⊢ (𝑠 = ∅ → (((𝜑 ∧ 𝑠 ⊆ 𝐶) → (𝑋 ∩ ∩ 𝑠) ∈ 𝐶) ↔ ((𝜑 ∧ ∅ ⊆ 𝐶) → (𝑋 ∩ ∩ ∅) ∈ 𝐶))) |
13 | ismred2.in | . . . . 5 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶) → (𝑋 ∩ ∩ 𝑠) ∈ 𝐶) | |
14 | 6, 12, 13 | vtocl 3503 | . . . 4 ⊢ ((𝜑 ∧ ∅ ⊆ 𝐶) → (𝑋 ∩ ∩ ∅) ∈ 𝐶) |
15 | 5, 14 | mpan2 689 | . . 3 ⊢ (𝜑 → (𝑋 ∩ ∩ ∅) ∈ 𝐶) |
16 | 4, 15 | eqeltrrid 2842 | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝐶) |
17 | simp2 1137 | . . . . 5 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → 𝑠 ⊆ 𝐶) | |
18 | 1 | 3ad2ant1 1133 | . . . . 5 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → 𝐶 ⊆ 𝒫 𝑋) |
19 | 17, 18 | sstrd 3936 | . . . 4 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → 𝑠 ⊆ 𝒫 𝑋) |
20 | simp3 1138 | . . . 4 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → 𝑠 ≠ ∅) | |
21 | rintn0 5045 | . . . 4 ⊢ ((𝑠 ⊆ 𝒫 𝑋 ∧ 𝑠 ≠ ∅) → (𝑋 ∩ ∩ 𝑠) = ∩ 𝑠) | |
22 | 19, 20, 21 | syl2anc 585 | . . 3 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → (𝑋 ∩ ∩ 𝑠) = ∩ 𝑠) |
23 | 13 | 3adant3 1132 | . . 3 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → (𝑋 ∩ ∩ 𝑠) ∈ 𝐶) |
24 | 22, 23 | eqeltrrd 2838 | . 2 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → ∩ 𝑠 ∈ 𝐶) |
25 | 1, 16, 24 | ismred 17360 | 1 ⊢ (𝜑 → 𝐶 ∈ (Moore‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 397 ∧ w3a 1087 = wceq 1539 ∈ wcel 2104 ≠ wne 2941 ∩ cin 3891 ⊆ wss 3892 ∅c0 4262 𝒫 cpw 4539 ∩ cint 4886 ‘cfv 6458 Moorecmre 17340 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-ral 3063 df-rex 3072 df-rab 3306 df-v 3439 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-int 4887 df-br 5082 df-opab 5144 df-mpt 5165 df-id 5500 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-iota 6410 df-fun 6460 df-fv 6466 df-mre 17344 |
This theorem is referenced by: isacs1i 17415 mreacs 17416 |
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