"Superaltern" validity in different word game dictionaries

Dictionary Validity
Scrabble US(US/Canada/Thailand - TWL/NWL) Yes
Scrabble UK(International - SOWPODS/CSW) Yes
Words with Friends(WWF) Yes

"superaltern" Definition

  1. a universal proposition (such as "every P is Q") that in traditional logic is held to be grounds for the immediate inference of the truth of a corresponding subaltern (such as "some P is Q")

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