Section # $2$: Use the eight rules of inference to prove the validity of the following arguments

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$7.$

$1.($R v S $)($ E $$ Z $)$

$2.($ R v B $)($ G $$ ~ H $)$

$3.($ R v U $)($E v G $)$

$4.$ R$//$ Z v ~ H

$$

$7.$

$1.($R v S $)($ E $$ Z $)$

$2.($ R v B $)($ G $$ ~ H $)$

$3.($ R v U $)($E v G $)$

$4.$ R$//$ Z v ~ H