Funktor

start

definition
  let x1 be Θ1;
   .....
  let xn be Θn;
  mode θ of (a1,...,am)  -> Θ' means Φ(x1,...,xn,it);
end;

definition
  let x1 be Θ1;
   .....
  let xn be Θn;
  mode θ of (a1,...,am)  is Θ';
end;

gdzie {a1,...,am} ⊆ {x1,...,xn-1} oraz domknięcie zbioru {a1,...,am} ze względu na zależność typów daje cały zbiór {x1,...,xn-1}.

Mode %theta; of (a1,...,am) słuźy do tworzenia typów θ of (τ1,...,τm).

Przykłady:

set, Relation, Function of A,B, Homomorphism of A,B, mmlquery

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Topic revision: r1 - 2012-01-24 - 17:46:53 - GrzegorzBancerek
 
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