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| Mirrors > Home > MPE Home > Th. List > ismred | Structured version Visualization version GIF version | ||
| Description: Properties that determine a Moore collection. (Contributed by Stefan O'Rear, 30-Jan-2015.) |
| Ref | Expression |
|---|---|
| ismred.ss | ⊢ (𝜑 → 𝐶 ⊆ 𝒫 𝑋) |
| ismred.ba | ⊢ (𝜑 → 𝑋 ∈ 𝐶) |
| ismred.in | ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → ∩ 𝑠 ∈ 𝐶) |
| Ref | Expression |
|---|---|
| ismred | ⊢ (𝜑 → 𝐶 ∈ (Moore‘𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ismred.ss | . 2 ⊢ (𝜑 → 𝐶 ⊆ 𝒫 𝑋) | |
| 2 | ismred.ba | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝐶) | |
| 3 | velpw 4562 | . . . 4 ⊢ (𝑠 ∈ 𝒫 𝐶 ↔ 𝑠 ⊆ 𝐶) | |
| 4 | ismred.in | . . . . 5 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → ∩ 𝑠 ∈ 𝐶) | |
| 5 | 4 | 3expia 1139 | . . . 4 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶) → (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 6 | 3, 5 | sylan2b 606 | . . 3 ⊢ ((𝜑 ∧ 𝑠 ∈ 𝒫 𝐶) → (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 7 | 6 | ralrimiva 3154 | . 2 ⊢ (𝜑 → ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 8 | ismre 17674 | . 2 ⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) | |
| 9 | 1, 2, 7, 8 | syl3anbrc 1362 | 1 ⊢ (𝜑 → 𝐶 ∈ (Moore‘𝑋)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1103 ∈ wcel 2145 ≠ wne 2955 ∀wral 3076 ⊆ wss 3899 ∅c0 4279 𝒫 cpw 4557 ∩ cint 4907 ‘cfv 6533 Moorecmre 17666 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-iota 6489 df-fun 6535 df-fv 6541 df-mre 17670 |
| This theorem is used by: ismred2 17687 mremre 17688 submre 17689 subrngmre 20724 subrgmre 20759 lssmre 21150 cssmre 21906 cldmre 23303 toponmre 23318 zartopn 34385 ismrcd1 43543 |
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