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| Mirrors > Home > MPE Home > Th. List > mrcssid | Structured version Visualization version GIF version | ||
| Description: The closure of a set is a superset. (Contributed by Stefan O'Rear, 31-Jan-2015.) |
| Ref | Expression |
|---|---|
| mrcfval.f | ⊢ 𝐹 = (mrCls‘𝐶) |
| Ref | Expression |
|---|---|
| mrcssid | ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝑈 ⊆ (𝐹‘𝑈)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssintub 4926 | . 2 ⊢ 𝑈 ⊆ ∩ {𝑠 ∈ 𝐶 ∣ 𝑈 ⊆ 𝑠} | |
| 2 | mrcfval.f | . . 3 ⊢ 𝐹 = (mrCls‘𝐶) | |
| 3 | 2 | mrcval 17698 | . 2 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → (𝐹‘𝑈) = ∩ {𝑠 ∈ 𝐶 ∣ 𝑈 ⊆ 𝑠}) |
| 4 | 1, 3 | sseqtrrid 3974 | 1 ⊢ ((𝐶 ∈ (Moore‘𝑋) ∧ 𝑈 ⊆ 𝑋) → 𝑈 ⊆ (𝐹‘𝑈)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 {crab 3412 ⊆ wss 3899 ∩ cint 4907 ‘cfv 6533 Moorecmre 17666 mrClscmrc 17667 |
| 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 ax-un 7736 |
| 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-sbc 3740 df-csb 3848 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-int 4908 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-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-fv 6541 df-mre 17670 df-mrc 17671 |
| This theorem is used by: mrcidb2 17706 mrcuni 17709 mrcssidd 17713 mrelatlub 18650 gsumwspan 18955 symggen 19597 mrccss 21907 ismrcd2 43544 ismrc 43546 mrefg2 43552 |
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