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Theorem wetrep 2194
Description: An epsilon well-ordering is a transitive relation.
Assertion
Ref Expression
wetrep |- ((E We A /\ (x e. A /\ y e. A /\ z e. A)) -> ((x e. y /\ y e. z) -> x e. z))

Proof of Theorem wetrep
StepHypRef Expression
1 sotr 2144 . . 3 |- ((E Or A /\ (x e. A /\ y e. A /\ z e. A)) -> ((xEy /\ yEz) -> xEz))
2 weso 2192 . . 3 |- (E We A -> E Or A)
31, 2sylan 343 . 2 |- ((E We A /\ (x e. A /\ y e. A /\ z e. A)) -> ((xEy /\ yEz) -> xEz))
4 epel 2124 . . 3 |- (xEy <-> x e. y)
5 epel 2124 . . 3 |- (yEz <-> y e. z)
64, 5anbi12i 369 . 2 |- ((xEy /\ yEz) <-> (x e. y /\ y e. z))
7 epel 2124 . 2 |- (xEz <-> x e. z)
83, 6, 73imtr3g 425 1 |- ((E We A /\ (x e. A /\ y e. A /\ z e. A)) -> ((x e. y /\ y e. z) -> x e. z))
Colors of variables: wff set class
Syntax hints:   -> wi 2   /\ wa 196   /\ w3a 581   e. wel 803   e. wcel 1092   class class class wbr 2054  Ecep 2056   Or wor 2059   We wwe 2062
This theorem is referenced by:  wefrc 2195  ordelord 2221
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-3an 583  df-ex 679  df-sb 853  df-clab 1093  df-cleq 1097  df-clel 1099  df-ral 1205  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-br 2063  df-opab 2098  df-eprel 2122  df-po 2128  df-so 2138  df-we 2186
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