Does a Lambda Function return the reference of a function definition?

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Python

Hello Friends,
Please look at the code below:

a = lambda x:x%2

When i typed:

print a(2)

the output was :
0

So does this mean that a lambda expression returns a reference to function definition? which means that 'a' will become the function which contains the definition : 'x:x%2'.

Is my understanding correct?

Thanks and Regards,
Rahul