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Theorem vtoclr 4435
Description: Variable to class conversion of transitive relation. (Contributed by NM, 9-Jun-1998.) (Revised by Mario Carneiro, 26-Apr-2015.)
Hypotheses
Ref Expression
vtoclr.1  |-  Rel  R
vtoclr.2  |-  ( ( x R y  /\  y R z )  ->  x R z )
Assertion
Ref Expression
vtoclr  |-  ( ( A R B  /\  B R C )  ->  A R C )
Distinct variable groups:    x, y, A   
y, B    x, z, C, y    x, R, y, z
Allowed substitution hints:    A( z)    B( x, z)

Proof of Theorem vtoclr
StepHypRef Expression
1 vtoclr.1 . . . . . 6  |-  Rel  R
21brrelexi 4431 . . . . 5  |-  ( A R B  ->  A  e.  _V )
31brrelex2i 4432 . . . . 5  |-  ( A R B  ->  B  e.  _V )
42, 3jca 300 . . . 4  |-  ( A R B  ->  ( A  e.  _V  /\  B  e.  _V ) )
51brrelex2i 4432 . . . 4  |-  ( B R C  ->  C  e.  _V )
6 breq1 3809 . . . . . . . 8  |-  ( x  =  A  ->  (
x R y  <->  A R
y ) )
76anbi1d 453 . . . . . . 7  |-  ( x  =  A  ->  (
( x R y  /\  y R C )  <->  ( A R y  /\  y R C ) ) )
8 breq1 3809 . . . . . . 7  |-  ( x  =  A  ->  (
x R C  <->  A R C ) )
97, 8imbi12d 232 . . . . . 6  |-  ( x  =  A  ->  (
( ( x R y  /\  y R C )  ->  x R C )  <->  ( ( A R y  /\  y R C )  ->  A R C ) ) )
109imbi2d 228 . . . . 5  |-  ( x  =  A  ->  (
( C  e.  _V  ->  ( ( x R y  /\  y R C )  ->  x R C ) )  <->  ( C  e.  _V  ->  ( ( A R y  /\  y R C )  ->  A R C ) ) ) )
11 breq2 3810 . . . . . . . 8  |-  ( y  =  B  ->  ( A R y  <->  A R B ) )
12 breq1 3809 . . . . . . . 8  |-  ( y  =  B  ->  (
y R C  <->  B R C ) )
1311, 12anbi12d 457 . . . . . . 7  |-  ( y  =  B  ->  (
( A R y  /\  y R C )  <->  ( A R B  /\  B R C ) ) )
1413imbi1d 229 . . . . . 6  |-  ( y  =  B  ->  (
( ( A R y  /\  y R C )  ->  A R C )  <->  ( ( A R B  /\  B R C )  ->  A R C ) ) )
1514imbi2d 228 . . . . 5  |-  ( y  =  B  ->  (
( C  e.  _V  ->  ( ( A R y  /\  y R C )  ->  A R C ) )  <->  ( C  e.  _V  ->  ( ( A R B  /\  B R C )  ->  A R C ) ) ) )
16 breq2 3810 . . . . . . . 8  |-  ( z  =  C  ->  (
y R z  <->  y R C ) )
1716anbi2d 452 . . . . . . 7  |-  ( z  =  C  ->  (
( x R y  /\  y R z )  <->  ( x R y  /\  y R C ) ) )
18 breq2 3810 . . . . . . 7  |-  ( z  =  C  ->  (
x R z  <->  x R C ) )
1917, 18imbi12d 232 . . . . . 6  |-  ( z  =  C  ->  (
( ( x R y  /\  y R z )  ->  x R z )  <->  ( (
x R y  /\  y R C )  ->  x R C ) ) )
20 vtoclr.2 . . . . . 6  |-  ( ( x R y  /\  y R z )  ->  x R z )
2119, 20vtoclg 2667 . . . . 5  |-  ( C  e.  _V  ->  (
( x R y  /\  y R C )  ->  x R C ) )
2210, 15, 21vtocl2g 2671 . . . 4  |-  ( ( A  e.  _V  /\  B  e.  _V )  ->  ( C  e.  _V  ->  ( ( A R B  /\  B R C )  ->  A R C ) ) )
234, 5, 22syl2im 38 . . 3  |-  ( A R B  ->  ( B R C  ->  (
( A R B  /\  B R C )  ->  A R C ) ) )
2423imp 122 . 2  |-  ( ( A R B  /\  B R C )  -> 
( ( A R B  /\  B R C )  ->  A R C ) )
2524pm2.43i 48 1  |-  ( ( A R B  /\  B R C )  ->  A R C )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 102    = wceq 1285    e. wcel 1434   _Vcvv 2610   class class class wbr 3806   Rel wrel 4397
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 663  ax-5 1377  ax-7 1378  ax-gen 1379  ax-ie1 1423  ax-ie2 1424  ax-8 1436  ax-10 1437  ax-11 1438  ax-i12 1439  ax-bndl 1440  ax-4 1441  ax-14 1446  ax-17 1460  ax-i9 1464  ax-ial 1468  ax-i5r 1469  ax-ext 2065  ax-sep 3917  ax-pow 3969  ax-pr 3993
This theorem depends on definitions:  df-bi 115  df-3an 922  df-tru 1288  df-nf 1391  df-sb 1688  df-clab 2070  df-cleq 2076  df-clel 2079  df-nfc 2212  df-ral 2358  df-rex 2359  df-v 2612  df-un 2987  df-in 2989  df-ss 2996  df-pw 3403  df-sn 3423  df-pr 3424  df-op 3426  df-br 3807  df-opab 3861  df-xp 4398  df-rel 4399
This theorem is referenced by:  domtr  6354
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