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If Jays, Martins, or both are in the forest then so are Harriers.
If J--> H
If M -> H , according to JY we should split when "or" is in the sufficient .
So what would the contro-positive be?
If not H-> not J?
If not H -> not M?
or would it be If not H -> not J and M ??
or is it if not H -> not J or M ?
Another question ....
But not both , or
Alan or Chris goes to park, but not both
If not A (-) C
If not C (-) A
so for not both, do we always just pick one throw it on either side of arrow and negate it?
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5 comments
@igbodoe249
Or in the sufficient - split
And in the sufficient- don't split
And in the necessary-split
Or in the necessary-don't split so this does not apply to any other games except in /out games ?
"But not both" , and " not both" @alexroark5906 mentioned they are not same. Can you please help me understand how they are not same ?
ex:
You will eat apples or oranges but not both
A (-) not O (double arrow)
You will eat apples or oranges , not both
A-> not O
O->not A
How are they different ?
@igbodoe249 , oh okay makes sense ! thank you both for responding
Or in the sufficient - split
And in the sufficient- don't split
And in the necessary-split
Or in the necessary-don't split
These rules are for the in/out games
but not both = bi-conditional always apart
for the first one you should have:
J
(two arrows, one from J, one from M) that both point to H
M
for the second,
this is correct, it is a biconditional. however be careful, "or but not both" is NOT the same as "not both"