YES (ignored inputs)COMMENT doi:10.1007/978-3-319-43144-4_18 [110] Example 7 Rewrite Rules: [ +(?x,?y) -> +(?y,?x), *(+(?x,?y),?z) -> +(*(?x,?z),*(?y,?z)), *(+(?y,?x),?z) -> +(*(?x,?z),*(?y,?z)) ] Apply Direct Methods... Inner CPs: [ *(+(?y,?x),?z_1) = +(*(?x,?z_1),*(?y,?z_1)), *(+(?y,?x),?z_2) = +(*(?y,?z_2),*(?x,?z_2)) ] Outer CPs: [ +(*(?x_1,?z_1),*(?y_1,?z_1)) = +(*(?y_1,?z_1),*(?x_1,?z_1)) ] not Overlay, check Termination... unknown/not Terminating unknown Knuth & Bendix Left-Linear, not Right-Linear Development Closed Direct Methods: CR Combined result: CR 504.trs: Success(CR) (0 msec.)