python_logic_refresher.txt

>>> for x in [True, False]:
...   for y in [True, False]:
...     print('{0} or {1} = {2}'.format(x, y, x or y))
...
True or True = True
True or False = True
False or True = True
False or False = False


>>> for x in [True, False]:
...   for y in [True, False]:
...     print('{0} and {1} = {2}'.format(x, y, x and y))
...
True and True = True
True and False = False
False and True = False
False and False = False