def
MathlibNt.SieveTheory.SwitchingPrinciple.SuzukiLemma144KappaOne.Section13HatExponentialDecay
(H : Section13HatLayers)
:
The source-faithful κ=1 content of (T5): for each sign, T̂ is eventually
bounded by a (sign-dependent) constant times exp (-s). This says decay only;
it does not mention a pairing.