pseudocode 0.1.7

AP CSP Pseudocode interpreter (rough cut)
Documentation 
DISPLAY(-1)
DISPLAY(-1 * 3)
DISPLAY((-2 * 3))
DISPLAY(-(2 * 3))
DISPLAY(NOT true)
DISPLAY(NOT false)
DISPLAY(NOT (true))

a ← 3
b ← 1
DISPLAY(NOT (a = b))