3.26/1.68 MAYBE 3.26/1.68 3.26/1.68 Proof: 3.26/1.68 ConCon could not decide confluence of the system. 3.26/1.68 \cite{ALS94}, Theorem 4.1 does not apply. 3.26/1.68 This system is of type 3 or smaller. 3.26/1.69 This system is strongly deterministic. 3.26/1.69 This system is quasi-decreasing. 3.26/1.69 By \cite{O02}, p. 214, Proposition 7.2.50. 3.26/1.69 This system is of type 3 or smaller. 3.26/1.69 This system is deterministic. 3.26/1.69 System R transformed to U(R). 3.26/1.69 This system is terminating. 3.26/1.69 Call external tool: 3.26/1.69 ./ttt2.sh 3.26/1.69 Input: 3.26/1.69 (VAR x) 3.26/1.69 (RULES 3.26/1.69 ?1(b, x) -> a 3.26/1.69 f(x) -> ?1(x, x) 3.26/1.69 a -> b 3.26/1.69 a -> c 3.26/1.69 ) 3.26/1.69 3.26/1.69 Polynomial Interpretation Processor: 3.26/1.69 dimension: 1 3.26/1.69 interpretation: 3.26/1.69 [c] = 0, 3.26/1.69 3.26/1.69 [f](x0) = 5x0x0 + 4, 3.26/1.69 3.26/1.69 [a] = 2, 3.26/1.69 3.26/1.69 [?1](x0, x1) = -2x0 + 4x0x0 + x1x1 + 3, 3.26/1.69 3.26/1.69 [b] = 0 3.26/1.69 orientation: 3.26/1.69 ?1(b(),x) = x*x + 3 >= 2 = a() 3.26/1.69 3.26/1.69 f(x) = 5x*x + 4 >= -2x + 5x*x + 3 = ?1(x,x) 3.26/1.69 3.26/1.69 a() = 2 >= 0 = b() 3.26/1.69 3.26/1.69 a() = 2 >= 0 = c() 3.26/1.69 problem: 3.26/1.69 3.26/1.69 Qed 3.26/1.69 ConCon could not decide whether all 2 critical pairs are joinable or not. 3.26/1.69 Overlap: (rule1: a -> c, rule2: a -> b, pos: ε, mgu: {}) 3.26/1.69 CP: b = c 3.26/1.69 ConCon could not decide context-joinability of this critical pair. 3.26/1.69 3.26/1.71 EOF