LG DIAGRAMMING "NOR"
Posted: Tue Nov 15, 2011 8:18 pm
I'm pretty comfortable with conditional diagramming but PT58 LG4 Q23 tripped me up today. It was a substitute rule tht I got wrong and I think I got it wrong because I misdiagrammed "nor."
I understand that
If A --> B and C
=
Not B or Not C --> Not A
I get that when drawing contrapositives you negate and switch & --> or and or --> and but what if the rule says nor?
"If X is taken, then neither Y NOR Z can be taken"
Would this be diagrammed as
X --> not Y AND not Z
=
Y OR Z --> not X
Thanks guys!
I understand that
If A --> B and C
=
Not B or Not C --> Not A
I get that when drawing contrapositives you negate and switch & --> or and or --> and but what if the rule says nor?
"If X is taken, then neither Y NOR Z can be taken"
Would this be diagrammed as
X --> not Y AND not Z
=
Y OR Z --> not X
Thanks guys!