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Theorem ngpxms 24789
Description: A normed group is an extended metric space. (Contributed by Mario Carneiro, 2-Oct-2015.)
Assertion
Ref Expression
ngpxms (𝐺 ∈ NrmGrp → 𝐺 ∈ ∞MetSp)

Proof of Theorem ngpxms
StepHypRef Expression
1 ngpms 24788 . 2 (𝐺 ∈ NrmGrp → 𝐺 ∈ MetSp)
2 msxms 24642 . 2 (𝐺 ∈ MetSp → 𝐺 ∈ ∞MetSp)
31, 2syl 18 1 (𝐺 ∈ NrmGrp → 𝐺 ∈ ∞MetSp)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wcel 2146  ∞MetSpcxms 24505  MetSpcms 24506  NrmGrpcngp 24765
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2737
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  df-rab 3419  df-v 3459  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4287  df-if 4490  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-br 5112  df-opab 5176  df-xp 5669  df-co 5672  df-res 5675  df-iota 6496  df-fv 6548  df-ms 24509  df-ngp 24771
This theorem is used by:  ngpdsr  24793  ngpds2r  24795  ngpds3  24796  ngpds3r  24797  nmge0  24805  nmeq0  24806  minveclem4a  25620  minveclem4  25622  qqhcn  34421  qqhucn  34422  rrhcn  34427  rrhf  34428  rrexttps  34436  rrexthaus  34437
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