rewrite_lambda_functions.py

# Original Function
f = (lambda x: x((lambda x: x(lambda x: x))(x)))(lambda x: x)

# Reduced confusion
f = (
        lambda a: a(
            (
                lambda b: b(lambda c: c)
            )(a)
        )
    )(lambda d: d)

# Re-write into normal functions
def _a(a):
    return a(_b)(a)

def _b(b):
    return b(_c)
  
def _c(c):
    return c
  
def _d(d):
    return d

def f(x):
    return _a(_d)(x)
  
# Next step: Derive f(1)