Step
*
of Lemma
cong-tri-implies-cong-angle2
∀e:BasicGeometry. ∀a,b,c,x,y,z:Point.  (a ≠ b ⇒ b ≠ c ⇒ ab ≅ xy ⇒ bc ≅ yz ⇒ ca ≅ zx ⇒ abc ≅a xyz)
BY
{ (Auto THEN BLemma `cong-tri-implies-cong-angle` THEN Auto THEN D 0 THEN Auto) }
Latex:
Latex:
\mforall{}e:BasicGeometry.  \mforall{}a,b,c,x,y,z:Point.
    (a  \mneq{}  b  {}\mRightarrow{}  b  \mneq{}  c  {}\mRightarrow{}  ab  \mcong{}  xy  {}\mRightarrow{}  bc  \mcong{}  yz  {}\mRightarrow{}  ca  \mcong{}  zx  {}\mRightarrow{}  abc  \mcong{}\msuba{}  xyz)
By
Latex:
(Auto  THEN  BLemma  `cong-tri-implies-cong-angle`  THEN  Auto  THEN  D  0  THEN  Auto)
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