If Cow, Then Poo: Modus Ponens and Affirming the Consequent (Deductive Logic Series Book 1) by Aubrey Kirkham Bjork. Available in Kindle edition on smile.amazon.com.
If Cow, Then Poo
If Cow, Then Poo: Modus Ponens and Affirming the Consequent (Deductive Logic Series Book 1) by Aubrey Kirkham Bjork. Available in Kindle edition on smile.amazon.com.