Someone asked, “Pass Lot's wife, Toppy, will you?” Toppy slid the salt shaker down the table […]
But old Halascum once, under the mellowing influence of having sold some furs, and seeing the great quantities of muckamuck, or goodly things to eat, which his prize had furnished, was led to tell the mystery […]
Galois connections appear in several areas of mathematics and computer science, and their applications. A Galois connection between sets X and Y is a pair ⟨↑,↓⟩ of mappings ↑ assigning subcollections of Y to subcollections of X, and ↓ assigning subcollections of X to subcollections of Y.
The problem is exactly the one you have stated: many people would not be comfortable with a sudden genderswap in the Doctor, when the possibility has not even been hinted at in the past.
