I'm not sure I agree completely with your reasoning, but I'll try to see that it doesn't go to waste.

"I'm glad to hear that you agree with my reasoning, then, Uncle."

We agree with its reasoning on this narrow question of mayoral powers.

As for the rest of it, I agree with your reasoning.

One agreed with Judge Posner's reasoning; two came down on the other side.

Drizzt nodded, allowing himself to agree with the captain's reasoning.

They didn't always agree with his reasoning but they were loyal to their commander.

The company agreed with his reasoning, but retracted the offer.

Suessi frowned, but found he had to agree with her reasoning.

I'm not at all certain I agree with her reasoning.