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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 4559 | . . . 4 ⊢ (𝑠 ∈ 𝒫 𝐶 ↔ 𝑠 ⊆ 𝐶) | |
| 4 | ismred.in | . . . . 5 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶 ∧ 𝑠 ≠ ∅) → ∩ 𝑠 ∈ 𝐶) | |
| 5 | 4 | 3expia 1121 | . . . 4 ⊢ ((𝜑 ∧ 𝑠 ⊆ 𝐶) → (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 6 | 3, 5 | sylan2b 594 | . . 3 ⊢ ((𝜑 ∧ 𝑠 ∈ 𝒫 𝐶) → (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 7 | 6 | ralrimiva 3128 | . 2 ⊢ (𝜑 → ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) |
| 8 | ismre 17509 | . 2 ⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) | |
| 9 | 1, 2, 7, 8 | syl3anbrc 1344 | 1 ⊢ (𝜑 → 𝐶 ∈ (Moore‘𝑋)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1086 ∈ wcel 2113 ≠ wne 2932 ∀wral 3051 ⊆ wss 3901 ∅c0 4285 𝒫 cpw 4554 ∩ cint 4902 ‘cfv 6492 Moorecmre 17501 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-iota 6448 df-fun 6494 df-fv 6500 df-mre 17505 |
| This theorem is referenced by: ismred2 17522 mremre 17523 submre 17524 subrngmre 20495 subrgmre 20530 lssmre 20917 cssmre 21648 cldmre 23022 toponmre 23037 zartopn 34032 ismrcd1 42940 |
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