Question 1060034
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1. T v S 
2. ~T 
3. (S v S) &#8835; (~P v R)     /~R &#8835;~P

4. S          1,2, Disjunctive Syllogism
5. S v S      4, Addition
6. ~P v R     3, Modus Ponens
7. P &#8835; R      6, Material Implication
8. ~R &#8835; ~P    7, Transposition
  
Edwin</pre></b>