Theorem shelii 29478

Description: A member of a subspace of a Hilbert space is a vector. (Contributed by NM, 6-Oct-1999.) (New usage is discouraged.)

Hypotheses

Ref	Expression
shssi.1	⊢ 𝐻 ∈ Sℋ
sheli.1	⊢ 𝐴 ∈ 𝐻

Assertion

Ref	Expression
shelii	⊢ 𝐴 ∈ ℋ

Proof of Theorem shelii

Step	Hyp	Ref	Expression
1		shssi.1	. . 3 ⊢ 𝐻 ∈ Sℋ
2	1	shssii 29476	. 2 ⊢ 𝐻 ⊆ ℋ
3		sheli.1	. 2 ⊢ 𝐴 ∈ 𝐻
4	2, 3	sselii 3914	1 ⊢ 𝐴 ∈ ℋ

Syntax hints:   ∈ wcel 2108   ℋchba 29182   S_ℋ csh 29191

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-ext 2709  ax-sep 5218  ax-hilex 29262

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-sb 2069  df-clab 2716  df-cleq 2730  df-clel 2817  df-rab 3072  df-v 3424  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-br 5071  df-opab 5133  df-xp 5586  df-cnv 5588  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-sh 29470

This theorem is referenced by:  omlsilem  29665