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Theorem chss 31300
Description: A closed subspace of a Hilbert space is a subset of Hilbert space. (Contributed by NM, 24-Aug-1999.) (New usage is discouraged.)
Assertion
Ref Expression
chss (𝐻C𝐻 ⊆ ℋ)

Proof of Theorem chss
StepHypRef Expression
1 chsh 31295 . 2 (𝐻C𝐻S )
2 shss 31281 . 2 (𝐻S𝐻 ⊆ ℋ)
31, 2syl 17 1 (𝐻C𝐻 ⊆ ℋ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2114  wss 3889  chba 30990   S csh 30999   C cch 31000
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-sep 5231  ax-hilex 31070
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-br 5086  df-opab 5148  df-xp 5637  df-cnv 5639  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6454  df-fv 6506  df-ov 7370  df-sh 31278  df-ch 31292
This theorem is referenced by:  chel  31301  pjhcl  31472  dfch2  31478  shlub  31485  chsscon2  31573  chscllem2  31709  pjvec  31767  pjocvec  31768  pjhf  31779  elpjrn  32261
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