2.15/1.10	YES
2.15/1.10	
2.15/1.10	Proof:
2.15/1.11	This system is confluent.
2.15/1.11	By \cite{ALS94}, Theorem 4.1.
2.15/1.11	This system is of type 3 or smaller.
2.15/1.11	This system is strongly deterministic.
2.15/1.11	This system is quasi-decreasing.
2.15/1.11	By \cite{O02}, p. 214, Proposition 7.2.50.
2.15/1.11	This system is of type 3 or smaller.
2.15/1.11	This system is deterministic.
2.15/1.11	System R transformed to U(R).
2.15/1.11	This system is terminating.
2.15/1.11	Call external tool:
2.15/1.11	./ttt2.sh
2.15/1.11	Input:
2.15/1.11	  a -> c
2.15/1.11	  b -> c
2.15/1.11	  ?1(x, x) -> x
2.15/1.11	  f(x) -> ?1(a, x)
2.15/1.11	
2.15/1.11	 Polynomial Interpretation Processor:
2.15/1.11	  dimension: 1
2.15/1.11	  interpretation:
2.15/1.11	   [f](x0) = 2x0 + 6x0x0 + 7,
2.15/1.11	   
2.15/1.11	   [?1](x0, x1) = x0 + 4x1x1 + 1,
2.15/1.11	   
2.15/1.11	   [b] = 1,
2.15/1.11	   
2.15/1.11	   [c] = 0,
2.15/1.11	   
2.15/1.11	   [a] = 5
2.15/1.11	  orientation:
2.15/1.11	   a() = 5 >= 0 = c()
2.15/1.11	   
2.15/1.11	   b() = 1 >= 0 = c()
2.15/1.11	   
2.15/1.11	   ?1(x,x) = x + 4x*x + 1 >= x = x
2.15/1.11	   
2.15/1.11	   f(x) = 2x + 6x*x + 7 >= 4x*x + 6 = ?1(a(),x)
2.15/1.11	  problem:
2.15/1.11	   
2.15/1.11	  Qed
2.15/1.11	All 0 critical pairs are joinable.
2.15/1.11	
2.35/1.15	EOF