PT21.S2.Q20 - Ann will either take a leave of absence or quit her job

Comments

• jwk291291 Member

  November 2020 edited November 2020 249 karma

  Oh yeah, that's a tricky question. I diagrammed it as:
  Quit job —> ~leave of absence
  Leave of absence —> ~quit job
  (~ indicating not)

  It seemed to work. I'll just write out my solution in terms of formal logic.

  Assuming that she was offered a fellowship, from the premises, we know that:


  1.~allowed to take leave of absence —> camp finds out
  and
  2.quit job —> ~leave of absence

  We need to connect that to the conclusion that:

  quit job —> camp finds out
  

  We can see that one element of each side of the conclusion exists in each premise. Let’s connect the premises with an assumption: 


  ~leave of absence —> ~allowed to take leave of absence 
  

  This gives us:

  quit job —> ~leave of absence —> ~allowed to take leave of absence —> camp finds out
  

  Voila. D is the contrapositive of this solution.

  However, I would recommend against using formal logic in this question. While it's good practice, it just makes everything so much more complicated.
• Ashley2018-1 Alum Member

  November 2020 2249 karma

  Thank you! I had to diagram this out unfortunately
• canihazJD Alum Member Sage ⭐

  November 2020 8491 karma

  For that question even though they don't say "not both", you want a biconditional, as you cant take a leave of absence and also quit. So: Q ↔ /L
• Ashley2018-1 Alum Member

  November 2020 edited November 2020 2249 karma

  I personally cannot do this question in my head; I think I would have to skip and go back to it in real life.
• Ashley2018-1 Alum Member

  November 2020 edited November 2020 2249 karma

  How am I supposed to do this question in my head?