Invariants #126
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Invariants #126
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This PR adds two invariants:
logdensity_def(μ, x) ≈ logdensity_rel(μ, β, x)(intest_interface)logdensity_rel(pushfwd(f, μ), pushfwd(f, ν), x) == logdensity_rel(μ, ν, inverse(f)(x))(intest_pushfwd)Currently some tests are failing. I think these laws are correct, so we should examine the codebase more carefully and get this in line.