YES After renaming modulo { P->0, Q->1, p->2, q->3 }, it remains to prove termination of the 9-rule system { 0 -> 1 1 2 , 2 2 -> 3 3 , 2 1 1 -> 1 1 2 , 1 2 3 -> 3 2 1 , 3 3 2 -> 2 3 3 , 3 1 -> , 1 3 -> , 2 0 -> , 0 2 -> } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 1 | | 0 1 | \ / 1 is interpreted by / \ | 1 0 | | 0 1 | \ / 2 is interpreted by / \ | 1 0 | | 0 1 | \ / 3 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 2->0, 3->1, 1->2 }, it remains to prove termination of the 6-rule system { 0 0 -> 1 1 , 0 2 2 -> 2 2 0 , 2 0 1 -> 1 0 2 , 1 1 0 -> 0 1 1 , 1 2 -> , 2 1 -> } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 1 | | 0 1 | \ / 1 is interpreted by / \ | 1 1 | | 0 1 | \ / 2 is interpreted by / \ | 1 1 | | 0 1 | \ / After renaming modulo { 0->0, 1->1, 2->2 }, it remains to prove termination of the 4-rule system { 0 0 -> 1 1 , 0 2 2 -> 2 2 0 , 2 0 1 -> 1 0 2 , 1 1 0 -> 0 1 1 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 1 | | 0 1 | \ / 1 is interpreted by / \ | 1 0 | | 0 1 | \ / 2 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 0->0, 2->1, 1->2 }, it remains to prove termination of the 3-rule system { 0 1 1 -> 1 1 0 , 1 0 2 -> 2 0 1 , 2 2 0 -> 0 2 2 } Applying the dependency pairs transformation. After renaming modulo { (0,true)->0, (1,false)->1, (1,true)->2, (0,false)->3, (2,false)->4, (2,true)->5 }, it remains to prove termination of the 12-rule system { 0 1 1 -> 2 1 3 , 0 1 1 -> 2 3 , 0 1 1 -> 0 , 2 3 4 -> 5 3 1 , 2 3 4 -> 0 1 , 2 3 4 -> 2 , 5 4 3 -> 0 4 4 , 5 4 3 -> 5 4 , 5 4 3 -> 5 , 3 1 1 ->= 1 1 3 , 1 3 4 ->= 4 3 1 , 4 4 3 ->= 3 4 4 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 1 | | 0 1 | \ / 1 is interpreted by / \ | 1 1 | | 0 1 | \ / 2 is interpreted by / \ | 1 1 | | 0 1 | \ / 3 is interpreted by / \ | 1 1 | | 0 1 | \ / 4 is interpreted by / \ | 1 1 | | 0 1 | \ / 5 is interpreted by / \ | 1 1 | | 0 1 | \ / After renaming modulo { 0->0, 1->1, 2->2, 3->3, 4->4, 5->5 }, it remains to prove termination of the 6-rule system { 0 1 1 -> 2 1 3 , 2 3 4 -> 5 3 1 , 5 4 3 -> 0 4 4 , 3 1 1 ->= 1 1 3 , 1 3 4 ->= 4 3 1 , 4 4 3 ->= 3 4 4 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 4: 0 is interpreted by / \ | 1 0 1 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / 1 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 1 | | 0 1 0 0 | \ / 2 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / 3 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 1 0 | | 0 0 1 0 | \ / 4 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / 5 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / After renaming modulo { 2->0, 3->1, 4->2, 5->3, 1->4, 0->5 }, it remains to prove termination of the 5-rule system { 0 1 2 -> 3 1 4 , 3 2 1 -> 5 2 2 , 1 4 4 ->= 4 4 1 , 4 1 2 ->= 2 1 4 , 2 2 1 ->= 1 2 2 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 1 | | 0 1 | \ / 1 is interpreted by / \ | 1 1 | | 0 1 | \ / 2 is interpreted by / \ | 1 1 | | 0 1 | \ / 3 is interpreted by / \ | 1 1 | | 0 1 | \ / 4 is interpreted by / \ | 1 0 | | 0 1 | \ / 5 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 1->0, 4->1, 2->2 }, it remains to prove termination of the 3-rule system { 0 1 1 ->= 1 1 0 , 1 0 2 ->= 2 0 1 , 2 2 0 ->= 0 2 2 } The system is trivially terminating.