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Theorem ordtr1 4387
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 4377 . 2 (Ord 𝐶 → Tr 𝐶)
2 trel 4107 . 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 2148  Tr wtr 4100  Ord word 4361
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 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-ext 2159
This theorem depends on definitions:  df-bi 117  df-tru 1356  df-nf 1461  df-sb 1763  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-v 2739  df-in 3135  df-ss 3142  df-uni 3810  df-tr 4101  df-iord 4365
This theorem is referenced by:  ontr1  4388  ordwe  4574  dfsmo2  6285  smores2  6292  smoel  6298  tfr1onlemsucaccv  6339  tfr1onlembxssdm  6341  tfr1onlembfn  6342  tfr1onlemaccex  6346  tfr1onlemres  6347  tfrcllemsucaccv  6352  tfrcllembxssdm  6354  tfrcllembfn  6355  tfrcllemaccex  6359  tfrcllemres  6360  tfrcl  6362  ordiso2  7031
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