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Theorem mrcidmd 17613
Description: Moore closure is idempotent. Deduction form of mrcidm 17606. (Contributed by David Moews, 1-May-2017.)
Hypotheses
Ref Expression
mrcssidd.1 (πœ‘ β†’ 𝐴 ∈ (Mooreβ€˜π‘‹))
mrcssidd.2 𝑁 = (mrClsβ€˜π΄)
mrcssidd.3 (πœ‘ β†’ π‘ˆ βŠ† 𝑋)
Assertion
Ref Expression
mrcidmd (πœ‘ β†’ (π‘β€˜(π‘β€˜π‘ˆ)) = (π‘β€˜π‘ˆ))

Proof of Theorem mrcidmd
StepHypRef Expression
1 mrcssidd.1 . 2 (πœ‘ β†’ 𝐴 ∈ (Mooreβ€˜π‘‹))
2 mrcssidd.3 . 2 (πœ‘ β†’ π‘ˆ βŠ† 𝑋)
3 mrcssidd.2 . . 3 𝑁 = (mrClsβ€˜π΄)
43mrcidm 17606 . 2 ((𝐴 ∈ (Mooreβ€˜π‘‹) ∧ π‘ˆ βŠ† 𝑋) β†’ (π‘β€˜(π‘β€˜π‘ˆ)) = (π‘β€˜π‘ˆ))
51, 2, 4syl2anc 582 1 (πœ‘ β†’ (π‘β€˜(π‘β€˜π‘ˆ)) = (π‘β€˜π‘ˆ))
Colors of variables: wff setvar class
Syntax hints:   β†’ wi 4   = wceq 1533   ∈ wcel 2098   βŠ† wss 3949  β€˜cfv 6553  Moorecmre 17569  mrClscmrc 17570
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2166  ax-ext 2699  ax-sep 5303  ax-nul 5310  ax-pow 5369  ax-pr 5433  ax-un 7746
This theorem depends on definitions:  df-bi 206  df-an 395  df-or 846  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2529  df-eu 2558  df-clab 2706  df-cleq 2720  df-clel 2806  df-nfc 2881  df-ne 2938  df-ral 3059  df-rex 3068  df-rab 3431  df-v 3475  df-sbc 3779  df-csb 3895  df-dif 3952  df-un 3954  df-in 3956  df-ss 3966  df-nul 4327  df-if 4533  df-pw 4608  df-sn 4633  df-pr 4635  df-op 4639  df-uni 4913  df-int 4954  df-br 5153  df-opab 5215  df-mpt 5236  df-id 5580  df-xp 5688  df-rel 5689  df-cnv 5690  df-co 5691  df-dm 5692  df-rn 5693  df-res 5694  df-ima 5695  df-iota 6505  df-fun 6555  df-fn 6556  df-f 6557  df-fv 6561  df-mre 17573  df-mrc 17574
This theorem is referenced by:  mressmrcd  17614  mreexexlem2d  17632  acsmap2d  18554
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