Just wanted to add a running list of intrinsic functions:
(/Verse.org/Verse:)Abs<intrinsic>(Value:float)<converges>:float
(/Verse.org/Verse:)Abs<intrinsic>(Value:int)<converges>:int
(/Verse.org/Verse:)Ceil<intrinsic>(Value:rational)<converges>:int
(/Verse.org/Verse:)Floor<intrinsic>(Value:rational)<converges>:int
Edit: Correcting the decides context comment, I was dividing which is why there was decides context. That being said It would still be very nice to get a defined list of intrinsic functions somewhere. TY
PS. not qualified confirmed 
Important to note that while Abs has the exact same specifiers as Ceil or Floor, Ceil and Floor both require decides context.
Epic… Please… I’m not qualified for this.