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Theorem chss 31378
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 31373 . 2 (𝐻C𝐻S )
2 shss 31359 . 2 (𝐻S𝐻 ⊆ ℋ)
31, 2syl 17 1 (𝐻C𝐻 ⊆ ℋ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2141  wss 3904  chba 31068   S csh 31077   C cch 31078
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-ext 2733  ax-sep 5245  ax-hilex 31148
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-sb 2090  df-clab 2740  df-cleq 2753  df-clel 2836  df-rab 3414  df-v 3455  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-br 5100  df-opab 5162  df-xp 5651  df-cnv 5653  df-dm 5655  df-rn 5656  df-res 5657  df-ima 5658  df-iota 6473  df-fv 6525  df-ov 7395  df-sh 31356  df-ch 31370
This theorem is referenced by:  chel  31379  pjhcl  31550  dfch2  31556  shlub  31563  chsscon2  31651  chscllem2  31787  pjvec  31845  pjocvec  31846  pjhf  31857  elpjrn  32339
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