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Step * 1 2 of Lemma rel_plus-of-restriction

.....antecedent..... 
1. [T] : Type
2. [R] : T ⟶ T ⟶ ℙ
3. [P] : T ⟶ ℙ
⊢ Trans(T;x,y.x R+|P y)
BY
{ (BLemma `restriction-of-transitive` THEN Auto) }

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Latex:

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Latex:
.....antecedent..... 
1.  [T]  :  Type
2.  [R]  :  T  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{}
3.  [P]  :  T  {}\mrightarrow{}  \mBbbP{}
\mvdash{}  Trans(T;x,y.x  R\msupplus{}|P  y)


By

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Latex:
(BLemma  `restriction-of-transitive`  THEN  Auto)

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