(declare Int sort)

(define arithpred_Int (! x (term Int)
                      (! y (term Int)
                        formula)))

(declare >_Int arithpred_Int)
(declare >=_Int arithpred_Int)
(declare <_Int  arithpred_Int)
(declare <=_Int arithpred_Int)

(define arithterm_Int (! x (term Int)
		      (! y (term Int)
		        (term Int))))

(declare +_Int arithterm_Int)
(declare -_Int arithterm_Int)
(declare *_Int arithterm_Int)  ; is * ok to use?
(declare /_Int arithterm_Int)  ; is / ok to use?

; a constant term
(declare a_int (! x mpz (term Int)))

; unary negation
(declare u-_Int (! t (term Int) (term Int)))