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Mirrors > Home > MPE Home > Th. List > mrccl | Structured version Visualization version GIF version |
Description: The Moore closure of a set is a closed set. (Contributed by Stefan O'Rear, 31-Jan-2015.) |
Ref | Expression |
---|---|
mrcfval.f | ⊢ 𝐹 = (mrCls‘𝐶) |
Ref | Expression |
---|---|
mrccl | ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) ∈ 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mrcfval.f | . . . 4 ⊢ 𝐹 = (mrCls‘𝐶) | |
2 | 1 | mrcf 17112 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
3 | 2 | adantr 484 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝐹:𝒫 𝑋⟶𝐶) |
4 | mre1cl 17097 | . . . 4 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ 𝐶) | |
5 | elpw2g 5237 | . . . 4 ⊢ (𝑋 ∈ 𝐶 → (𝑈 ∈ 𝒫 𝑋 ↔ 𝑈 ⊆ 𝑋)) | |
6 | 4, 5 | syl 17 | . . 3 ⊢ (𝐶 ∈ (Moore‘𝑋) → (𝑈 ∈ 𝒫 𝑋 ↔ 𝑈 ⊆ 𝑋)) |
7 | 6 | biimpar 481 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝑈 ∈ 𝒫 𝑋) |
8 | 3, 7 | ffvelrnd 6905 | 1 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) ∈ 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∈ wcel 2110 ⊆ wss 3866 𝒫 cpw 4513 ⟶wf 6376 ‘cfv 6380 Moorecmre 17085 mrClscmrc 17086 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-ral 3066 df-rex 3067 df-rab 3070 df-v 3410 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-op 4548 df-uni 4820 df-int 4860 df-br 5054 df-opab 5116 df-mpt 5136 df-id 5455 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-fv 6388 df-mre 17089 df-mrc 17090 |
This theorem is referenced by: mrcsncl 17115 mrcidb 17118 mrcidm 17122 submrc 17131 isacs2 17156 mrelatlub 18068 mreclatBAD 18069 gsumwspan 18273 cycsubg2cl 18618 symggen 18862 odf1o1 18961 cntzspan 19229 gsumzsplit 19312 gsumzoppg 19329 gsumpt 19347 dmdprdd 19386 dprdfeq0 19409 dprdspan 19414 dprdres 19415 dprdz 19417 subgdmdprd 19421 subgdprd 19422 dprd2dlem1 19428 dprd2da 19429 dmdprdsplit2lem 19432 mrccss 20656 ismrcd2 40224 proot1mul 40727 mrelatlubALT 45954 mreclat 45956 |
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