Male bacteria having the sex factor, also known as the F or fertility factor, are termed P if the sex factor exists extrachromosomally. F+ bacteria can only conjugate with F, the female counterparts, which do not possess the F [factor].

We suggest that for small numerosities, the preverbal counter can run much faster than the verbal counting routine, so that the magnitude (the preverbal numeron) that represents the numerosity of an array is specified long before the verbal counting process has arrived at the correct numerlog It is specified so much sooner that one can get the correct numerlog more quickly by using the preverbal counting mechanism (subitizing) to get the preverbal numeron and use the preverbal numeron to retrieve the numerlog.

The famous Recess of Augsburgh, which is the basis of religious peace in Germany.

Conway's construction of surreal numbers relies on the use of transfinite induction.