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Vintage 1975 WFF’N PROOF On Sets The Game of Set Theory Games for Thinkers:
$17.99
Used Condition. The Vintage 1975 WFF'N PROOF On Sets board game is an educational game designed for thinkers. With a minimum of 2 players, this game titled "On-Sets" challenges players to apply their knowledge of set theory in a fun and engaging way. Made in the United States by WFF'N PROOF, this game is recommended for ages 12 and up, making it suitable for both boys and girls who enjoy testing their critical thinking skills.
