| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ngpms | Structured version Visualization version GIF version | ||
| Description: A normed group is a metric space. (Contributed by Mario Carneiro, 2-Oct-2015.) |
| Ref | Expression |
|---|---|
| ngpms | ⊢ (𝐺 ∈ NrmGrp → 𝐺 ∈ MetSp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2762 | . . 3 ⊢ (norm‘𝐺) = (norm‘𝐺) | |
| 2 | eqid 2762 | . . 3 ⊢ (-g‘𝐺) = (-g‘𝐺) | |
| 3 | eqid 2762 | . . 3 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 4 | 1, 2, 3 | isngp 24823 | . 2 ⊢ (𝐺 ∈ NrmGrp ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ MetSp ∧ ((norm‘𝐺) ∘ (-g‘𝐺)) ⊆ (dist‘𝐺))) |
| 5 | 4 | simp2bi 1164 | 1 ⊢ (𝐺 ∈ NrmGrp → 𝐺 ∈ MetSp) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 ⊆ wss 3902 ∘ ccom 5663 ‘cfv 6537 distcds 17355 Grpcgrp 19058 -gcsg 19060 MetSpcms 24545 normcnm 24803 NrmGrpcngp 24804 |
| 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 2147 ax-9 2155 ax-ext 2734 |
| 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 2741 df-cleq 2754 df-clel 2837 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-co 5668 df-iota 6493 df-fv 6545 df-ngp 24810 |
| This theorem is used by: ngpxms 24828 ngptps 24829 ngpmet 24830 isngp4 24839 nmmtri 24849 nmrtri 24851 subgngp 24862 ngptgp 24863 tngngp2 24879 nlmvscnlem2 24912 nlmvscnlem1 24913 nlmvscn 24914 nrginvrcn 24919 nghmcn 24972 nmcn 25072 nmhmcn 25349 ipcnlem2 25473 ipcnlem1 25474 ipcn 25475 nglmle 25531 cssbn 25604 minveclem2 25655 minveclem3b 25657 minveclem3 25658 minveclem4 25661 minveclem7 25664 |
| Copyright terms: Public domain | W3C validator |