<s>
In	O
logic	O
and	O
mathematics	O
,	O
relation	B-Algorithm
construction	I-Algorithm
and	O
relational	O
constructibility	O
have	O
to	O
do	O
with	O
the	O
ways	O
that	O
one	O
relation	B-Algorithm
is	O
determined	O
by	O
an	O
indexed	O
family	O
or	O
a	O
sequence	O
of	O
other	O
relations	O
,	O
called	O
the	O
relation	B-Algorithm
dataset	O
.	O
</s>
<s>
The	O
relation	B-Algorithm
in	O
the	O
focus	O
of	O
consideration	O
is	O
called	O
the	O
faciendum	O
.	O
</s>
<s>
The	O
relation	B-Algorithm
dataset	O
typically	O
consists	O
of	O
a	O
specified	O
relation	B-Algorithm
over	O
sets	O
of	O
relations	O
,	O
called	O
the	O
constructor	O
,	O
the	O
factor	O
,	O
or	O
the	O
method	O
of	O
construction	O
,	O
plus	O
a	O
specified	O
set	O
of	O
other	O
relations	O
,	O
called	O
the	O
faciens	O
,	O
the	O
ingredients	O
,	O
or	O
the	O
makings	O
.	O
</s>
<s>
Relation	B-Algorithm
composition	O
and	O
relation	B-Algorithm
reduction	O
are	O
special	O
cases	O
of	O
relation	B-Algorithm
constructions	I-Algorithm
.	O
</s>
