Categories Sex and Gender Logic Post author By Debbie Hayton Post date January 28, 2020 4 Comments on Logic tw ⊆ m ; w ⊆ f ; m ∩ f = ∅ . ∴ tw ∩ w = ∅ ⇒ tw ≠ w Share this:TwitterFacebookLike this:Like Loading... Related Tags Logic, Transgender By Debbie Hayton Physics teacher and trade unionist. View Archive → ← The Inconvenient Truth About Transwomen → I May Have Gender Dysphoria. But I Still Prefer to Base My Life on Biology, Not Fantasy 4 replies on “Logic” A wee gap: tw and w might both be empty sets. LikeLiked by 1 person Gosh, you made me work to understand that, Debbie, but I managed after looking up what the symbols meant. LikeLiked by 1 person This only holds to be true under the assumption that sex is a binary; that is, statement 3 can be disproved easily with the just under 2% of the population that is some combination of both male and female. Therefore, the union of tw and f is in fact a nonempty set. LikeLike Sex is binary. Intersex conditions are variations within the two sex classes. They are not new and different sexes outside them, LikeLike Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. ( Log Out / Change ) You are commenting using your Google account. ( Log Out / Change ) You are commenting using your Twitter account. ( Log Out / Change ) You are commenting using your Facebook account. ( Log Out / Change ) Cancel Connecting to %s Notify me of new comments via email. Notify me of new posts via email.