On maxima and minima : chapter 5 of Rules for solving sophismata, with an anonymous fourteenth-century discussion / William Heytesbury ; transl., [from the Latin] with an introd. and study, by John Longeway

On maxima and minima : chapter 5 of Rules for solving sophismata, with an anonymous fourteenth-century discussion / William Heytesbury ; transl., [from the Latin] with an introd. and study, by John Longeway