Math

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table.
If I can get my child to preschool by 9:45AM, then I can take the 9:00AM class.
If I can take the 9AM class, then I can be done by 2PM
If I can get my child to preschool by 8:45AM then I can be done by 2PM

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asked by Boo
  1. p -> q
    q -> r
    p -> r

    valid

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    posted by Steve
  2. p_>r

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    posted by Shazia
  3. 20 x 20 = 100

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    posted by leshem
  4. 400

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