; any unsigned 64-bit number
	; 317 584 931 803
	push 000000049h
	push 0F1897BDBh
	; trial divide start prime
	mov ecx, 2
_0:	mov eax, [esp][4]
	xor edx, edx
	div ecx
	mov esi, eax
	mov eax, [esp][0]
	div ecx
	inc ecx
	test edx, edx
	jne _0
	dec ecx
	mov [esp][4], esi
	mov [esp][0], eax
	test esi, esi
	jne _0
	dec eax
	jne _0
	pop eax
	pop edx
	; ECX = greatest unsigned 32-bit prime factor

lambda a:bool(1-a)

def invert(a):
    try:
        a / a
        return False
    except:
        return True

Exception up = new Exception("Something is really wrong.");
throw up;  //ha ha

def invert(a):
    False, True = True, False
    return eval(str(bool(a)))

// Replaces with spaces the braces in cases where braces in places cause stasis
   $str = str_replace(array("\{","\}")," ",$str);

'¬' : properties(
    arity = 1,
    function = len
)