Users' Mathboxes Mathbox for Jeff Madsen < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  blssp Structured version   Visualization version   Unicode version

Theorem blssp 33552
Description: A ball in the subspace metric. (Contributed by Jeff Madsen, 2-Sep-2009.) (Revised by Mario Carneiro, 5-Jan-2014.)
Hypothesis
Ref Expression
blssp.2  |-  N  =  ( M  |`  ( S  X.  S ) )
Assertion
Ref Expression
blssp  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  ( Y ( ball `  N
) R )  =  ( ( Y (
ball `  M ) R )  i^i  S
) )

Proof of Theorem blssp
StepHypRef Expression
1 metxmet 22139 . . 3  |-  ( M  e.  ( Met `  X
)  ->  M  e.  ( *Met `  X
) )
21ad2antrr 762 . 2  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  M  e.  ( *Met `  X ) )
3 simprl 794 . . 3  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  Y  e.  S )
4 simplr 792 . . . 4  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  S  C_  X )
5 sseqin2 3817 . . . 4  |-  ( S 
C_  X  <->  ( X  i^i  S )  =  S )
64, 5sylib 208 . . 3  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  ( X  i^i  S )  =  S )
73, 6eleqtrrd 2704 . 2  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  Y  e.  ( X  i^i  S
) )
8 rpxr 11840 . . 3  |-  ( R  e.  RR+  ->  R  e. 
RR* )
98ad2antll 765 . 2  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  R  e.  RR* )
10 blssp.2 . . 3  |-  N  =  ( M  |`  ( S  X.  S ) )
1110blres 22236 . 2  |-  ( ( M  e.  ( *Met `  X )  /\  Y  e.  ( X  i^i  S )  /\  R  e.  RR* )  ->  ( Y (
ball `  N ) R )  =  ( ( Y ( ball `  M ) R )  i^i  S ) )
122, 7, 9, 11syl3anc 1326 1  |-  ( ( ( M  e.  ( Met `  X )  /\  S  C_  X
)  /\  ( Y  e.  S  /\  R  e.  RR+ ) )  ->  ( Y ( ball `  N
) R )  =  ( ( Y (
ball `  M ) R )  i^i  S
) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 384    = wceq 1483    e. wcel 1990    i^i cin 3573    C_ wss 3574    X. cxp 5112    |` cres 5116   ` cfv 5888  (class class class)co 6650   RR*cxr 10073   RR+crp 11832   *Metcxmt 19731   Metcme 19732   ballcbl 19733
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-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-mulcl 9998  ax-i2m1 10004
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-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-1st 7168  df-2nd 7169  df-er 7742  df-map 7859  df-en 7956  df-dom 7957  df-sdom 7958  df-pnf 10076  df-mnf 10077  df-xr 10078  df-rp 11833  df-xadd 11947  df-psmet 19738  df-xmet 19739  df-met 19740  df-bl 19741
This theorem is referenced by:  bndss  33585
  Copyright terms: Public domain W3C validator