The second one is by valid form of argumentation (rules of logic)
Next this statement r becomes premises or given and deduce the statement s
“ x – 3 = 0 or x – 2 = 0” and the reasons are given in the brackets This process continues till we reach the conclusion The symbolic equivalent of the argument is to prove by deduction that p ⇒ q
is true Starting with p, we deduce p ⇒ r ⇒ s ⇒ … ⇒ q