Python Lambda expression

y = lambda n:n**0.5
print(y(9),y(10),sep='\t\t')
# 3.0		3.1622776601683795
z = lambda a,b: a**b
print(z(2,3),z(7,4),sep='\t\t')
# 8		2401

b1 = (lambda x:x>0)(10)
print(b1) # True
b2 = (lambda x,y:x-y)(8,6) # 2
print(b2)

print((lambda k:k%2==0)(5)) # False
print((lambda L:sum(L))([2,3,4,5])) # 14