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Boolean Expressions

Rob Gaddi rgaddi at highlandtechnology.invalid
Tue Sep 26 18:30:29 EDT 2017 
On 09/26/2017 03:23 PM, Cai Gengyang wrote:
> 
> I'm trying to understand the logic behind AND. I looked up Python logic tables
> 
> False and False gives False
> False and True gives False
> True and False gives False
> True and True gives True.
> 
> So does that mean that the way 'and' works in Python is that both terms must be True (1) for the entire expression to be True ? Why is it defined that way, weird ? I was always under the impression that 'and' means that when you have both terms the same, ie either True and True or False and False , then it gives True
> 

No, that would actually be an xnor (not xor) operation, a fairly rare 
usage case.  Python doesn't even provide an operator for that, the 
closest thing would be (bool(x) == bool(y)).

"And" means "and".  This is true AND that is true.

-- 
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
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