Hi Jack,
On Wed, Mar 16, 2011 at 1:50 AM, Jack Trades jacktradespub...@gmail.com wrote:
On Wed, Mar 16, 2011 at 12:22 AM, Donald Bedsole drbeds...@gmail.com
wrote:
not (False and True)
Python evaluates it as True
1)You evaluate what's in the parentheses first. A thing can not be
false
On Wed, Mar 16, 2011 at 1:24 AM, Donald Bedsole drbeds...@gmail.com wrote:
Ok, so, as another example:
not(True and False) is True
because: the first argument True is true, and the second argument
False when returned is negated by not becomes not False which
evaluates to True?
Correct.
Donald Bedsole drbeds...@gmail.com wrote
most part. But, could someone make sure I'm understanding this one
expression correctly?
not (False and True)
Python evaluates it as True
Is it because:
1)You evaluate what's in the parentheses first. A thing can not be
false and true at the same
Hi Allen,
Boolean algebra can be a weird thing to get your head around
the first time you come across it :-)
Yes, :-)
Here are some of the standard rules:
True and thing = thing
False and thing = False
True or thing = True
False or thing = thing
Thanks for your response and for the
On 3/16/2011 4:26 PM, Donald Bedsole wrote:
Hi Allen,
Boolean algebra can be a weird thing to get your head around
the first time you come across it :-)
Yes, :-)
Here are some of the standard rules:
True and thing = thing
False and thing = False
True or thing = True
False or thing = thing
On Wed, Mar 16, 2011 at 5:53 PM, bob gailer bgai...@gmail.com wrote:
Thing in this context means 'anything. could be a string, number, list, any
Python object.
Ok, thanks Bob.
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Hi Jack,
On Wed, Mar 16, 2011 at 1:55 AM, Jack Trades jacktradespub...@gmail.com wrote:
'and' evaluates one argument at a time and returns immediately if the
argument is False.
And or works in the inverse manner? It evaluates one argument at
a time and returns immediately if the argument
Donald Bedsole drbeds...@gmail.com wrote
The first argument was True, so True was returned and negated by
the not with a final result of False for the expression.
Is this correct?
Yes. Its called Short Circuit Evaluation.
You will find an explanation on the Functional Programming topic
of my
Donald Bedsole drbeds...@gmail.com wrote
False or thing = thing
Thanks for your response and for the rules, but for some reason I'm
not understanding. In the above quote, what is meant by thing?
Any Boolean value, and in Python that means pretty much
anything at all because Python has a
On Wed, Mar 16, 2011 at 12:22 AM, Donald Bedsole drbeds...@gmail.comwrote:
not (False and True)
Python evaluates it as True
Is it because:
1)You evaluate what's in the parentheses first. A thing can not be
false and true at the same time, so the answer is false.
Yes, the expression in
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