Theorem hlnv 30980

Description: Every complex Hilbert space is a normed complex vector space. (Contributed by NM, 17-Mar-2007.) (New usage is discouraged.)

Assertion

Ref	Expression
hlnv	⊢ (𝑈 ∈ CHilOLD → 𝑈 ∈ NrmCVec)

Proof of Theorem hlnv

Step	Hyp	Ref	Expression
1		hlobn 30977	. 2 ⊢ (𝑈 ∈ CHilOLD → 𝑈 ∈ CBan)
2		bnnv 30955	. 2 ⊢ (𝑈 ∈ CBan → 𝑈 ∈ NrmCVec)
3	1, 2	syl 17	1 ⊢ (𝑈 ∈ CHilOLD → 𝑈 ∈ NrmCVec)

Syntax hints:   → wi 4   ∈ wcel 2119  NrmCVeccnv 30673  CBanccbn 30951  CHil_OLDchlo 30974

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2711

This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-sb 2074  df-clab 2718  df-cleq 2731  df-clel 2814  df-rab 3392  df-v 3433  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4262  df-if 4455  df-sn 4556  df-pr 4558  df-op 4562  df-uni 4839  df-br 5073  df-iota 6441  df-fv 6493  df-cbn 30952  df-hlo 30975

This theorem is referenced by:  hlnvi  30981  hlvc  30982  hladdf  30988  hlcom  30989  hlass  30990  hl0cl  30991  hladdid  30992  hlmulf  30993  hlmulid  30994  hlmulass  30995  hldi  30996  hldir  30997  hlmul0  30998  hlipf  30999  hlipcj  31000  hlipgt0  31003