The lamp is OFF. It stays dark!
Gate by gate
- A OR B → ON OR OFF = ON
- (A OR B) AND C → ON AND ON = ON
- NOT ((A OR B) AND C) → NOT ON = OFF
The same circuit in Python
Python has the same three gates built in: and, or and not. ON is True and OFF is False.
A = True
B = False
C = True
lamp = not ((A or B) and C)
print("Is the lamp on?", lamp)When you run it, it prints:
Is the lamp on? False
Try it: change one of the switches from True to False (or the other way round) and run the code again. Can you find a switch that changes the lamp?