15.45/4.24 NO 15.45/4.24 15.45/4.24 Problem: 15.45/4.24 a(x1) -> x1 15.45/4.24 a(b(x1)) -> x1 15.45/4.24 a(b(x1)) -> b(c(a(a(x1)))) 15.45/4.24 c(c(x1)) -> b(x1) 15.45/4.24 15.45/4.24 Proof: 15.45/4.24 String Reversal Processor: 15.45/4.24 a(x1) -> x1 15.45/4.24 b(a(x1)) -> x1 15.45/4.24 b(a(x1)) -> a(a(c(b(x1)))) 15.45/4.24 c(c(x1)) -> b(x1) 15.45/4.24 Unfolding Processor: 15.45/4.24 loop length: 10 15.45/4.24 terms: 15.45/4.24 b(a(a(a(a(c(a(a(x73580)))))))) 15.45/4.24 a(a(c(b(a(a(a(c(a(a(x73580)))))))))) 15.45/4.24 a(a(c(a(a(c(b(a(a(c(a(a(x73580)))))))))))) 15.45/4.24 a(a(c(a(c(b(a(a(c(a(a(x73580))))))))))) 15.45/4.24 a(a(c(c(b(a(a(c(a(a(x73580)))))))))) 15.45/4.24 a(a(b(b(a(a(c(a(a(x73580))))))))) 15.45/4.24 a(a(b(a(a(c(b(a(c(a(a(x73580))))))))))) 15.45/4.24 a(a(b(a(a(c(c(a(a(x73580))))))))) 15.45/4.24 a(a(b(a(a(b(a(a(x73580)))))))) 15.45/4.24 a(a(b(a(a(a(a(c(b(a(x73580)))))))))) 15.45/4.24 context: a(a([])) 15.45/4.24 substitution: 15.45/4.24 x73580 -> c(b(x73580)) 15.45/4.24 Qed 15.45/4.25 EOF