MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  mreincl Structured version   Visualization version   GIF version

Theorem mreincl 17650
Description: Two closed sets have a closed intersection. (Contributed by Stefan O'Rear, 30-Jan-2015.)
Assertion
Ref Expression
mreincl ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → (𝐴𝐵) ∈ 𝐶)

Proof of Theorem mreincl
StepHypRef Expression
1 intprg 4945 . . 3 ((𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} = (𝐴𝐵))
213adant1 1146 . 2 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} = (𝐴𝐵))
3 simp1 1152 . . 3 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → 𝐶 ∈ (Moore‘𝑋))
4 prssi 4786 . . . 4 ((𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} ⊆ 𝐶)
543adant1 1146 . . 3 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} ⊆ 𝐶)
6 prnzg 4743 . . . 4 (𝐴𝐶 → {𝐴, 𝐵} ≠ ∅)
763ad2ant2 1150 . . 3 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} ≠ ∅)
8 mreintcl 17646 . . 3 ((𝐶 ∈ (Moore‘𝑋) ∧ {𝐴, 𝐵} ⊆ 𝐶 ∧ {𝐴, 𝐵} ≠ ∅) → {𝐴, 𝐵} ∈ 𝐶)
93, 5, 7, 8syl3anc 1396 . 2 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → {𝐴, 𝐵} ∈ 𝐶)
102, 9eqeltrrd 2862 1 ((𝐶 ∈ (Moore‘𝑋) ∧ 𝐴𝐶𝐵𝐶) → (𝐴𝐵) ∈ 𝐶)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1101   = wceq 1568  wcel 2141  wne 2956  cin 3903  wss 3904  c0 4285  {cpr 4590   cint 4911  cfv 6536  Moorecmre 17633
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1823  ax-4 1837  ax-5 1938  ax-6 1995  ax-7 2036  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-sep 5256  ax-nul 5268  ax-pow 5336  ax-pr 5404
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1571  df-fal 1581  df-ex 1808  df-nf 1812  df-sb 2095  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rab 3415  df-v 3455  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4487  df-pw 4563  df-sn 4589  df-pr 4591  df-op 4595  df-uni 4872  df-int 4912  df-br 5109  df-opab 5173  df-mpt 5192  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-iota 6492  df-fun 6538  df-fv 6544  df-mre 17637
This theorem is referenced by:  submacs  18885  subgacs  19226  nsgacs  19227  lsmmod  19744  subrgacs  20882  sdrgacs  20883  lssacs  21067  mreclatdemoBAD  23232  lidlincl  33704
  Copyright terms: Public domain W3C validator