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

Theorem opelxpd 4637
Description: Ordered pair membership in a Cartesian product, deduction form. (Contributed by Glauco Siliprandi, 3-Mar-2021.)
Hypotheses
Ref Expression
opelxpd.1  |-  ( ph  ->  A  e.  C )
opelxpd.2  |-  ( ph  ->  B  e.  D )
Assertion
Ref Expression
opelxpd  |-  ( ph  -> 
<. A ,  B >.  e.  ( C  X.  D
) )

Proof of Theorem opelxpd
StepHypRef Expression
1 opelxpd.1 . 2  |-  ( ph  ->  A  e.  C )
2 opelxpd.2 . 2  |-  ( ph  ->  B  e.  D )
3 opelxpi 4636 . 2  |-  ( ( A  e.  C  /\  B  e.  D )  -> 
<. A ,  B >.  e.  ( C  X.  D
) )
41, 2, 3syl2anc 409 1  |-  ( ph  -> 
<. A ,  B >.  e.  ( C  X.  D
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2136   <.cop 3579    X. cxp 4602
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-14 2139  ax-ext 2147  ax-sep 4100  ax-pow 4153  ax-pr 4187
This theorem depends on definitions:  df-bi 116  df-3an 970  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ral 2449  df-rex 2450  df-v 2728  df-un 3120  df-in 3122  df-ss 3129  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-opab 4044  df-xp 4610
This theorem is referenced by:  suplocsrlemb  7747  seqvalcd  10394  ctiunctlemfo  12372  strslfv2d  12436  txcnp  12911  upxp  12912  txcnmpt  12913  uptx  12914  txdis1cn  12918  txlm  12919  lmcn2  12920  txhmeo  12959  comet  13139  txmetcnp  13158  dvaddxxbr  13305  dvmulxxbr  13306  dvcoapbr  13311
  Copyright terms: Public domain W3C validator