Ergo , designed by Closet Nerd Games and published by Catalyst Game Labs [1], is a card game of mathematical proofs. The cards consist of postulates (A, B, C, and D) and logical operations (AND, OR, NOT, …) as well as some utility cards thrown in for good measure. On your turn you can add cards to the rows of proofs, as long as all remaining sentences are…

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Ergo, A Card Game of Mathematical Proofs