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4.1 NARY

- An NARY operator is used to denote a function of any number of arguments, each of which is separated by an occurrence of the operator, e.g. A+B or A+B+C. The NARY("x") function is a syntax extension function to declare x to be an NARY operator. Do DESCRIBE(SYNTAX); for more details. Functions may be DECLAREd to be NARY. If DECLARE(J,NARY); is done, this tells the simplifier to simplify, e.g. J(J(A,B),J(C,D)) to J(A, B, C, D).


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