By Christopher Columbus's time, these tenets had become a forma mentis, a mental habit.

In order to better understand the effect of reducing a K-vector subspace V⊆P_d modulo a generic linear form, we generalize Proposition 5.5.18 as follows.

this historical, genetical method of viewing prior systems of philosophy

Classical Arabic has a fully functional dual number, which requires dual agreement in verbs, adjectives and pronouns.