ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  ovssunirng Unicode version

Theorem ovssunirng 6058
Description: The result of an operation value is always a subset of the union of the range. (Contributed by Mario Carneiro, 12-Jan-2017.)
Assertion
Ref Expression
ovssunirng  |-  ( ( X  e.  V  /\  Y  e.  W )  ->  ( X F Y )  C_  U. ran  F
)

Proof of Theorem ovssunirng
StepHypRef Expression
1 df-ov 6026 . 2  |-  ( X F Y )  =  ( F `  <. X ,  Y >. )
2 opexg 4322 . . 3  |-  ( ( X  e.  V  /\  Y  e.  W )  -> 
<. X ,  Y >.  e. 
_V )
3 fvssunirng 5657 . . 3  |-  ( <. X ,  Y >.  e. 
_V  ->  ( F `  <. X ,  Y >. ) 
C_  U. ran  F )
42, 3syl 14 . 2  |-  ( ( X  e.  V  /\  Y  e.  W )  ->  ( F `  <. X ,  Y >. )  C_ 
U. ran  F )
51, 4eqsstrid 3272 1  |-  ( ( X  e.  V  /\  Y  e.  W )  ->  ( X F Y )  C_  U. ran  F
)
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    e. wcel 2201   _Vcvv 2801    C_ wss 3199   <.cop 3673   U.cuni 3894   ran crn 4728   ` cfv 5328  (class class class)co 6023
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2204  ax-ext 2212  ax-sep 4208  ax-pow 4266  ax-pr 4301
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1810  df-eu 2081  df-mo 2082  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-ral 2514  df-rex 2515  df-v 2803  df-un 3203  df-in 3205  df-ss 3212  df-pw 3655  df-sn 3676  df-pr 3677  df-op 3679  df-uni 3895  df-br 4090  df-opab 4152  df-cnv 4735  df-dm 4737  df-rn 4738  df-iota 5288  df-fv 5336  df-ov 6026
This theorem is referenced by:  prdsvallem  13378
  Copyright terms: Public domain W3C validator