Request - Converse/inverse drills

Coffee and FastCoffee and Fast Member
in Logical Reasoning 13 karma

Hi,

Does anyone have any study tips for understanding converse/inverse statements that appear on LR questions to trick the test taker?

For example, on Necessary or Sufficient Assumption questions, I have a difficult time differentiating the converse/inverse from the contrapositive, and because of the time constraint, I consistently get these answers wrong.

Comments

  • galacticgalactic Yearly Member
    edited August 2021 690 karma

    I would just make some flashcards:

    1. contrapositive
      (front)
      A -> B
      /B -> /A
      (back)
      VALID

    2. converse
      (front)
      A-> B
      B -> A
      (back)
      INVALID

    3. inverse
      (front)
      A -> B
      /A -> /B
      (back)
      INVALID

    And just drill them until it becomes 2nd nature. Does that make sense? Hope this helps!

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