"Unless" generally introduces the necessary condition, whereas the other part of the conditional statement must be negated to become sufficient condition.
You can't win unless you learn how to lose
is thus properly diagrammed as:
W -> LHL
which is equivalent to its contrapositive:
~LHL -> ~W
Let me know if you have any further questions.
JakeTFebruary 17, 2020
I took the word "can't" win as to mean not win so I diagrammed it as: ~W -> LHL Can you help explain?
LamontMarch 12, 2022
Me too.
Emil-KunkinMarch 31, 2022
Hi @Lamont,
For an unless, we actually negate the sufficient condition. So in this case, we are actually negating a negative- in other words, if you don't know how to lose is negated to become "if you know how to lose."
The lesson for sufficient and necessary has some useful tools about diagramming different things that trigger sufficient and necessary and their rules, like with unless.
