Relation Composition

rascal-0.40.17

Synopsis

Composition of two relation values.

Syntax

Exp₁ o Exp₂

Types

Exp₁	Exp₂	Exp₁ o Exp₂
rel[T₁, T₂]	rel[T₂, T₃]	rel[T₁, T₃]

Description

Returns the composition of two binary relations.

Examples

rascal>import Relation;
ok
rascal>{<1,10>, <2,20>, <3,15>} o {<10,100>, <20,200>};
rel[int,int]: {
  <1,100>,
  <2,200>
}

Pitfalls

We use the letter o as operator and this may conflict other defined names.