A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

If ~q <=> ~p is T and pf is F, find the truth value of q =>p.

  • This Question is Closed
  1. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    another way to express that <=> part is to split it up both ways: -q -> -p -p -> -q

  2. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    -q <-> -p is only true if bith those expressions are true

  3. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I meant to say *and p is F. Sorry. So will the value be false?

  4. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    dunno, id have to remember all the assorted details :)

  5. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    don't you love truth tables?

  6. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    p -p q -q -p -> -q -q -> -p -q <-> -p 1 0 1 0 1 1 1 1 0 0 1 1 0 0 0 1 1 0 0 1 0 0 1 0 1 1 1 1 aint that the truth :)

  7. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    if p is 0 then -p is 1

  8. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    other than that, im sure I cant undersatnd the rest of the question

  9. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    we also have \[\lnot p \leftrightarrow \lnot q \equiv p \leftrightarrow q\]

  10. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    which certainly means if \[\lnot p \leftrightarrow \lnot q \] is true then \[q\rightarrow p\] is true

  11. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    If ~q <=> ~p is T p -p q -q -p -> -q -q -> -p -q <-> -p 1 0 1 0 1 1 1 0 1 0 1 1 1 1 and p is F, p -p q -q -p -> -q -q -> -p -q <-> -p 0 1 0 1 1 1 1 find the truth value of q =>p. p q -q <-> -p 0 0 1 0 -> 0 = 1

  12. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wow! but i still think the question is odd. if p iff q, then q implies p and p implies q, really has nothing to do with a particular case

  13. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    indeed, its just a practice drill :)

  14. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Wow. Thanks for breaking this down. My prof doesn't go this in-depth. Guess he gets bored since he already knows this stuff haha

  15. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    im in calc 3 and my teacher is still teaching us ow to add and subtract fractions; since there are students in class that have no idea how to .... makes me wonder how they even got there to begin with

  16. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    then she wonders why she gets behind in the lessons plans :)

  17. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you have to put the fractions over the same denominator? or can you just add straight across?

  18. amistre64
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    i just add straight across and hope for the best lol

  19. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Remarkable. Talk about breaking away from the syllabus..sheesh

  20. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.