• calabast@lemm.ee
      link
      fedilink
      arrow-up
      20
      ·
      1 year ago

      I agree that the person you’re replying to didn’t actually refute OOPs claim, but…uhh…I think A=B does mean that B=A

    • Uriel238 [all pronouns]@lemmy.blahaj.zone
      link
      fedilink
      arrow-up
      6
      ·
      edit-2
      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?