def iff(p: bool, q: bool) -> bool:
	"""
	If and only if operation.
	p <--> q <==> (p --> q) and (q --> p)

	The biconditional or iff is true
	when p and q are both True or False.
	This is, if the hypothesis is True,
	then the conclusion is True, meanwhile if
	the hypothesis is False the conclusion is False
	"""
	return p is q