Define `<` and `isless` for `Partials` #791

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devmotion wants to merge 1 commit into master from dmw/partials_cmp

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devmotion commented Dec 27, 2025

Fixes the incorrect comparison in #790 involving NaN. With this PR:

julia> xs = Dual(0.0,NaN)
Dual{Nothing}(0.0,NaN)

julia> xs < 0
false

julia> xs > 0
false

julia> isless(xs, 0)
false

julia> isless(0, xs)
true


          Define < and isless for Partials

3f27ec3

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