Other strategies that work well: “That’s a good point, I think that [x, y] are true...but I think that [w, z] might also be true...” Basically, focus on the part of their argument that was valid, praise them for it, and then make a point of your own, without necessarily saying directly that your argument invalidates part of their argument.
Other strategies that work well: “That’s a good point, I think that [x, y] are true...but I think that [w, z] might also be true...” Basically, focus on the part of their argument that was valid, praise them for it, and then make a point of your own, without necessarily saying directly that your argument invalidates part of their argument.