Theorem cmsms 23145

Description: A complete metric space is a metric space. (Contributed by Mario Carneiro, 15-Oct-2015.)

Assertion

Ref	Expression
cmsms	⊢ (𝐺 ∈ CMetSp → 𝐺 ∈ MetSp)

Proof of Theorem cmsms

Step	Hyp	Ref	Expression
1		eqid 2622	. . 3 ⊢ (Base‘𝐺) = (Base‘𝐺)
2		eqid 2622	. . 3 ⊢ ((dist‘𝐺) ↾ ((Base‘𝐺) × (Base‘𝐺))) = ((dist‘𝐺) ↾ ((Base‘𝐺) × (Base‘𝐺)))
3	1, 2	iscms 23142	. 2 ⊢ (𝐺 ∈ CMetSp ↔ (𝐺 ∈ MetSp ∧ ((dist‘𝐺) ↾ ((Base‘𝐺) × (Base‘𝐺))) ∈ (CMet‘(Base‘𝐺))))
4	3	simplbi 476	1 ⊢ (𝐺 ∈ CMetSp → 𝐺 ∈ MetSp)

Syntax hints:   → wi 4   ∈ wcel 1990   × cxp 5112   ↾ cres 5116  ‘cfv 5888  Basecbs 15857  distcds 15950  MetSpcmt 22123  CMetcms 23052  CMetSpccms 23129

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-nul 4789

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  df-xp 5120  df-res 5126  df-iota 5851  df-fv 5896  df-cms 23132

This theorem is referenced by:  cmsss  23147  cmetcusp1  23149  rlmbn  23157  rrhcn  30041  dya2icoseg2  30340  sitgclbn  30405