1) Let 1=a and 1=a, and 2=(aa) and 2=a, where 1 and 2 are CTL formulas, and 1 and 2 are LTL formulas. Check for each pair (i,i)(i=1,2), whether the CTL formula i is equivalent to the LTL formula i. 1) Let 1=a and 1=a, and 2=(aa) and 2=a, where 1 and 2 are CTL formulas, and 1 and 2 are LTL formulas. Check for each pair (i,i)(i=1,2), whether the CTL formula i is equivalent to the LTL formula