THE DEFINITIVE GUIDE TO NASCENCY ANTONYMS MEANING

There won't be any minimum pairs for tense/lax pairs for example /ʊ/ and /u/ in unstressed syllables, since they are in complementary distribution. They don't seem to be truly various phonemes.I feel the dialogue about /x/ and /χ/ is superfluous. I checked several WIKI-web pages and when the a person says that /x/ is Mistaken the opposite says /x