Universal statements are not falsifiable. The reason is that they are defined, supported, reliant upon[...] lexicon! Lexicon is not science, but its all about establishing vocal or verbal conventions that are "blurt" whenever referencing some concrete or abstract entity. "All universal statements are lexiconically supported definitions" is an universal statement. It is not falsifiable simply because is it universal statement. It is without exception, peculiar to all languages, both in the ones that is used in and in the ones it is not used in! Using this logic, we can arrive to the conclusion that even ALL existential statements are unfalsifiable. Consider this: "All instances of observation O which have occured are proof of the existence of a black swan." Which leads us to a refutation of the following: "All swans are white." The problem arises more clearly when someone suggest the contrary: "No instances of observation O which have occured are proof of the existence of a black swan." Which is also unfalsifiable.