diff --git a/src/interface.jl b/src/interface.jl
index fe7bda26..9dde3a6b 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -244,6 +244,8 @@ function is_monotonically_increasing(cf::ComposedFunction)
     return is_monotonically_increasing(cf.inner) && is_monotonically_increasing(cf.outer)
 end
 is_monotonically_increasing(::typeof(exp)) = true
+is_monotonically_increasing(::typeof(log)) = true
+is_monotonically_increasing(binv::Inverse) = is_monotonically_increasing(inverse(b))
 is_monotonically_increasing(ef::Elementwise) = is_monotonically_increasing(ef.x)
 
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