If statement

[el_bueno]

Thank you a looooot.

What confuses me more is that I used s,p and r as conditions, so aren't we supposed to get an error if we use anything different then s,p and r?
s='Hungry'
p='Im full'
r=7

Still, I want to understand why aren't we having an error when we use 8?

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So lets get this straight one and for all!

So If is influenced by False and True.

Which leads us to have two cases:

First case
1- We can use False and True after if

if True: or
if False:

Second case
2-we can use values
a-integers:
0 means False
Different than 0 means True
b-If we use strings:
They should be predefined in order to use them, when defined they means true and if they aren't defined they means False and we get an error

Am I getting it right?