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?- NAN is nan, write_canonical(NAN). 1.5NaN NAN = 1.5NaN.
Weird!
I suppose one can test against NaN using =:= ?
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?- NAN is nan, write_canonical(NAN). 1.5NaN NAN = 1.5NaN.
Weird!
I suppose one can test against NaN using =:= ?