extensionality

14 LETTERS · 6 SYLLABLES · STARTS WITH E

extensionality is a valid 14-letter word worth 24 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1X8T1E1N1S1I1O1N1A1L1I1T1Y4

1 + 8 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does extensionality mean?