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Theorem ordtr1 4423
Description: Transitive law for ordinal classes. (Contributed by NM, 12-Dec-2004.)
Assertion
Ref Expression
ordtr1 (Ord 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))

Proof of Theorem ordtr1
StepHypRef Expression
1 ordtr 4413 . 2 (Ord 𝐶 → Tr 𝐶)
2 trel 4138 . 2 (Tr 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))
31, 2syl 14 1 (Ord 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  wcel 2167  Tr wtr 4131  Ord word 4397
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 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-v 2765  df-in 3163  df-ss 3170  df-uni 3840  df-tr 4132  df-iord 4401
This theorem is referenced by:  ontr1  4424  ordwe  4612  dfsmo2  6345  smores2  6352  smoel  6358  tfr1onlemsucaccv  6399  tfr1onlembxssdm  6401  tfr1onlembfn  6402  tfr1onlemaccex  6406  tfr1onlemres  6407  tfrcllemsucaccv  6412  tfrcllembxssdm  6414  tfrcllembfn  6415  tfrcllemaccex  6419  tfrcllemres  6420  tfrcl  6422  ordiso2  7101
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