\DOC \char'056

\TYPE {$. : ((* # * list) -> * list)}

\SYNOPSIS
Adds single element to the head of a list.

\KEYWORDS
list, construct.

\DESCRIBE
The {.} operator is an infixed primitive list constructor, analogous to {CONS}
in LISP. Its effect is {x . [x1;....;xn]} = {[x;x1;...;xn]}.

\FAILURE
Never fails.

\ENDDOC
