this post was submitted on 20 Aug 2023
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[–] [email protected] 6 points 1 year ago* (last edited 1 year ago)

The commutative property of equality is established. You might be thinking of conditionality.

Given:
If A then B, and
B is TRUE

we cannot say for certain A is true

Lisa doesn't get dessert if she doesn't eat her vegetables.
Lisa didn't get dessert

Can we asctertain if Lisa ate her vegetables?