construct proofs (in the same fashion that was demonstrated in the video lectures)
to show that the following sequents are valid.
1. (–q --> –p), p ⊢ q
2. (p --> (m --> r), m ⊢ p--> r
3. w--> (s--> (b--> r)) ⊢b--> (w--> (s--> r))
4. –t--> –r ⊢ r--> t

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

Which expression shows the sum of the polynomials with like terms grouped together

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