Standard Form

How does believing in multiple realities and multiple perspectives automatically justifies the idea that there can be no absolute as well? I feel these ideas are not in contradiction. A simple maxim for summarizing the postmodern viewpoint is that “the only absolute truth is there are no absolute truths.” However, this statement in and of itself demonstrates that an absolute truth can exist within the same system as that which believes all truths are relative. This very maxim uses the word ‘only’ which signifies that this can apply in every case, except this one. This maxim shows that at least a single absolute truth can exist within a reality ruled by no absolute truths. And a rule with one exception does not look the same as a rule with no exceptions.
If my assertion above is true, all I am really saying is that there are rules that can exist that appear paradoxical when looking through the lens of a two-value truth system (true/false). However, if when looked at through a three-value truth system (true, undetermined/unknown, false), then there exists no opposition between the fundamental assumptions put forth by modernism and postmodernism.