I forgot an important part of the setup, which was that u is bounded, not too far away from the present value, which means εΔu > -Δv is unlikely for general v.
Ah yep that’ll do.
I forgot an important part of the setup, which was that u is bounded, not too far away from the present value, which means εΔu > -Δv is unlikely for general v.
Ah yep that’ll do.