Universal 468: number marker (noun) = number marker (1&2 person verb)) ⇒ number marker (noun) = number marker (3 person verb))
Original
If marking of number is phonologically identical for nouns and verbal forms in the 1st and 2nd person, this will also be the case for nouns and verbal forms of the 3rd person.
Standardized
IF the marking for number is identical for nouns and verbal forms of 1st and 2nd person, THEN this will also be true for nouns and verbal forms of 3rd person.
See #471.