A Conjecture That Was False by One Exponential

We named a proof obligation about how fast a shallow exp–log expression can approach zero. It fit the lower-depth results and it looked right. It was false — and false at exactly one scale. Replacing a linear term by an exponential one yields a statement that is machine-checked, and the implication between the two is machine-checked as well. So the correction is not 'whatever the prover would…