s = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
t = {6, 7, 8, 9, 10, 11, 12, 13, 14, 15}

print("s = ", s)
print("t = ", t)

print()

# Anzahl der Elemente
l = len(s)
print(l)

# Ist ein Element im Set enthalten?
x = 10 in s
print(x)
x = 10 not in t
print(x)

# Handelt es sich umn eine Teilmenge
u = {4, 5, 6}
x = u <= s
print(x)
x = u < s
print(x)
x = u >= s
print(x)
x = u <= t
print(x)

m = {1, 2, 3}
n = {1, 2, 3}
print(m <= n)
print(m < n)

print()
# Vereinigung zweier Mengen
u = s | t
print(u)

# Schnittmenge
u = s & t
print(u)

# Differenz zweier Mengen
u = s - t
print(u)
u = t - s
print(u)

# Symmetrische Differenz zweier Mengen
u = s ^ t
print(u)