Users' Mathboxes Mathbox for Norm Megill < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  islvol Structured version   Visualization version   Unicode version

Theorem islvol 34859
Description: The predicate "is a 3-dim lattice volume". (Contributed by NM, 1-Jul-2012.)
Hypotheses
Ref Expression
lvolset.b  |-  B  =  ( Base `  K
)
lvolset.c  |-  C  =  (  <o  `  K )
lvolset.p  |-  P  =  ( LPlanes `  K )
lvolset.v  |-  V  =  ( LVols `  K )
Assertion
Ref Expression
islvol  |-  ( K  e.  A  ->  ( X  e.  V  <->  ( X  e.  B  /\  E. y  e.  P  y C X ) ) )
Distinct variable groups:    y, P    y, K    y, X
Allowed substitution hints:    A( y)    B( y)    C( y)    V( y)

Proof of Theorem islvol
Dummy variable  x is distinct from all other variables.
StepHypRef Expression
1 lvolset.b . . . 4  |-  B  =  ( Base `  K
)
2 lvolset.c . . . 4  |-  C  =  (  <o  `  K )
3 lvolset.p . . . 4  |-  P  =  ( LPlanes `  K )
4 lvolset.v . . . 4  |-  V  =  ( LVols `  K )
51, 2, 3, 4lvolset 34858 . . 3  |-  ( K  e.  A  ->  V  =  { x  e.  B  |  E. y  e.  P  y C x } )
65eleq2d 2687 . 2  |-  ( K  e.  A  ->  ( X  e.  V  <->  X  e.  { x  e.  B  |  E. y  e.  P  y C x } ) )
7 breq2 4657 . . . 4  |-  ( x  =  X  ->  (
y C x  <->  y C X ) )
87rexbidv 3052 . . 3  |-  ( x  =  X  ->  ( E. y  e.  P  y C x  <->  E. y  e.  P  y C X ) )
98elrab 3363 . 2  |-  ( X  e.  { x  e.  B  |  E. y  e.  P  y C x }  <->  ( X  e.  B  /\  E. y  e.  P  y C X ) )
106, 9syl6bb 276 1  |-  ( K  e.  A  ->  ( X  e.  V  <->  ( X  e.  B  /\  E. y  e.  P  y C X ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 196    /\ wa 384    = wceq 1483    e. wcel 1990   E.wrex 2913   {crab 2916   class class class wbr 4653   ` cfv 5888   Basecbs 15857    <o ccvr 34549   LPlanesclpl 34778   LVolsclvol 34779
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-sep 4781  ax-nul 4789  ax-pr 4906
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-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-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-iota 5851  df-fun 5890  df-fv 5896  df-lvols 34786
This theorem is referenced by:  islvol4  34860  lvoli  34861  lvolbase  34864  lvolnle3at  34868
  Copyright terms: Public domain W3C validator