org.zedlib
Class Maplet

java.lang.Object
  org.zedlib.Maplet

Direct Known Subclasses:

Baglet, OrderedPair, Seqlet

public class Maplet

extends Object

If X and Y are sets, then X ↔ Y is the set of binary relations between X and Y. Each such relation is a subset of X x Y . The 'maplet' notation from x to y is another way of expressing the ordered pair (x, y).

Author:

Brad Long

Field Summary

protected Object	x
protected Object	y

Constructor Summary

protected	Maplet()
	Maplet(Object x, Object y)

Method Summary

boolean	equals(Object o)
Object	first() Returns x in (x,y).
int	hashCode()
Object	second() Returns y in (x,y).
Object	x() Returns x in (x,y).
Object	y() Returns y in (x,y).

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

x

protected Object x

y

protected Object y

Constructor Detail

Maplet

protected Maplet()

Maplet

public Maplet(Object x,
              Object y)

Method Detail

first

public Object first()

Returns x in (x,y).

second

public Object second()

Returns y in (x,y).

x

public Object x()

Returns x in (x,y).

y

public Object y()

Returns y in (x,y).

equals

public boolean equals(Object o)

hashCode

public int hashCode()