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| Mirrors > Home > MPE Home > Th. List > mre1cl | Structured version Visualization version GIF version | ||
| Description: In any Moore collection the base set is closed. (Contributed by Stefan O'Rear, 30-Jan-2015.) |
| Ref | Expression |
|---|---|
| mre1cl | ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ismre 17492 | . 2 ⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) | |
| 2 | 1 | simp2bi 1146 | 1 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2109 ≠ wne 2925 ∀wral 3044 ⊆ wss 3903 ∅c0 4284 𝒫 cpw 4551 ∩ cint 4896 ‘cfv 6482 Moorecmre 17484 |
| 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 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ral 3045 df-rex 3054 df-rab 3395 df-v 3438 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-br 5093 df-opab 5155 df-mpt 5174 df-id 5514 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-iota 6438 df-fun 6484 df-fv 6490 df-mre 17488 |
| This theorem is referenced by: mrerintcl 17499 mreriincl 17500 mreuni 17502 mremre 17506 mrcflem 17512 mrcval 17516 mrccl 17517 mrcun 17528 mrelatglb0 18467 mreclatBAD 18469 mretopd 22977 mreclat 48991 |
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