OR statements diagramming

yeshesvini

I have a sincere doubt on diagramming 'OR'....

A or B is it incorrect to diagram as A --> /B , B --> /A

i know group 3 indicators are diagrammed as /A --> B , /B --> A

but would it make any difference if I simply drew A --> /B

been racking my brain about this....

vini

OlamHafuch

Very, very incorrect!
Your suggested diagram allows for the possibility that both are out, while "or" means one has to be in!

yeshesvini

A --> B
B --> A

do not comprehend how this allows for the possibility that both are out

OlamHafuch

Because not B or not A doesn't trigger anything.

Watermelon Otter

@yeshesvini said:
A --> B
B --> A

do not comprehend how this allows for the possibility that both are out

These conditionals leave the possibility for both to be out because if you fail the sufficient condition by placing A out, then the rule becomes irrelevant allowing B to be placed out (or in).

A --> B is the correct way to diagram "or", because no matter what if you place one letter out, the other must be in (or both could be in).

yeshesvini

aha!!! gotcha!!

awesome you guys!!

thanks heaps!