YES After renaming modulo { 0->0, *->1, 1->2, #->3, $->4 }, it remains to prove termination of the 7-rule system { 0 1 -> 1 2 , 2 1 -> 0 3 , 3 0 -> 0 3 , 3 2 -> 2 3 , 3 4 -> 1 4 , 3 3 -> 3 , 3 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 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 | \ / After renaming modulo { 0->0, 1->1, 2->2, 3->3, 4->4 }, it remains to prove termination of the 5-rule system { 0 1 -> 1 2 , 2 1 -> 0 3 , 3 0 -> 0 3 , 3 2 -> 2 3 , 3 4 -> 1 4 } Applying the dependency pairs transformation. After renaming modulo { (0,true)->0, (1,false)->1, (2,true)->2, (3,false)->3, (3,true)->4, (0,false)->5, (2,false)->6, (4,false)->7 }, it remains to prove termination of the 12-rule system { 0 1 -> 2 , 2 1 -> 0 3 , 2 1 -> 4 , 4 5 -> 0 3 , 4 5 -> 4 , 4 6 -> 2 3 , 4 6 -> 4 , 5 1 ->= 1 6 , 6 1 ->= 5 3 , 3 5 ->= 5 3 , 3 6 ->= 6 3 , 3 7 ->= 1 7 } 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 | \ / 6 is interpreted by / \ | 1 1 | | 0 1 | \ / 7 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 2->0, 1->1, 0->2, 3->3, 4->4, 5->5, 6->6, 7->7 }, it remains to prove termination of the 8-rule system { 0 1 -> 2 3 , 4 5 -> 2 3 , 4 6 -> 0 3 , 5 1 ->= 1 6 , 6 1 ->= 5 3 , 3 5 ->= 5 3 , 3 6 ->= 6 3 , 3 7 ->= 1 7 } 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 0 | | 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 | \ / 6 is interpreted by / \ | 1 1 | | 0 1 | \ / 7 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 4->0, 6->1, 0->2, 3->3, 5->4, 1->5, 7->6 }, it remains to prove termination of the 6-rule system { 0 1 -> 2 3 , 4 5 ->= 5 1 , 1 5 ->= 4 3 , 3 4 ->= 4 3 , 3 1 ->= 1 3 , 3 6 ->= 5 6 } 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 0 | | 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 | \ / 6 is interpreted by / \ | 1 0 | | 0 1 | \ / After renaming modulo { 4->0, 5->1, 1->2, 3->3, 6->4 }, it remains to prove termination of the 5-rule system { 0 1 ->= 1 2 , 2 1 ->= 0 3 , 3 0 ->= 0 3 , 3 2 ->= 2 3 , 3 4 ->= 1 4 } The system is trivially terminating.