-- we need to exec to get the prim__* functions to disappear :exec printLn negInf :exec printLn divNZbyZero :exec printLn addPosInfs :exec printLn subNegInfs :exec printLn subPosInf :exec printLn addNegInf :exec printLn squareNegInfIsPosInf :exec printLn squarePosInfIsPosInf :exec printLn multInfSignFlip :exec printLn posInfIsPosInf :exec printLn negInfIsNegInf :exec printLn posInfEqNegInf