how do i find the evidence of not the hypothesis? in Bayesian confirmation?

[standshortwater]

in Bayesian therum, i under stand how to assign the probability of the hypothesis, and then of not the hypothesis, (h-1), then the probability of the evidence. but how do i find the probability of the evidence of not the hypothesis ?
if you don't understand the question that's fine but don't add stupid crap and assume that i don't know what i'm talking about

[joeschmo]

if its not the hypothesis then i guess that aint it is it?