Source of the RE 

> nfa5a:=mkNFA({q0, q1, q2, q7, q4, q5, q3, q6},{"0", "1"},table([(q7, "0") = {q0, q1}, (q2, "0") = {q3}, (q1, lambda) = {q3}, (q0, "1") = {q0, q1}, (q1, "1") = {q2, q4, q5}, (q1, "0") = {q2, q4}, (q7, "1") = {q2, q6}, (q0, "0") = {q0, q4}, (q0, lambda) = {q3}]),q0,{q4, q5});
 

`:=`(nfa5a, NFA({q0, q1, q2, q7, q4, q5, q3, q6}, {
`:=`(nfa5a, NFA({q0, q1, q2, q7, q4, q5, q3, q6}, {
`:=`(nfa5a, NFA({q0, q1, q2, q7, q4, q5, q3, q6}, {
(17.1.2.1.1)
 

> s1:=NFA2RE(nfa5a,result=string);
 

> s2:=NFA2RE(minimalDFA(NFA2DFA(nfa5a)),result=string);
 

`:=`(s1, (17.1.2.1.2)
 

`:=`(s2, (17.1.2.1.2)