Logic puzzle might be present in lieu of a grid in a puzzle about the location of different shops. Logic puzzle A logic puzzle is a puzzle deriving from the mathematics field of deduction. The logic puzzle was first produced by Charles Lutwidge Dodgson, who is better known under his pen name Lewis Carroll, the author of "Alice's Adventures in Wonderland". In his book "The Game of Logic" he introduced a game to solve problems such as confirming the conclusion "Some greyhounds are not fat" from the statements "No fat creatures run well" and "Some greyhounds run well". Puzzles like this, where
First-order logic a common structure of ""a" is a philosopher". The variable "a" is instantiated as "Socrates" in the first sentence and is instantiated as "Plato" in the second sentence. While first-order logic allows for the use of predicates, such as "is a philosopher" in this example, propositional logic does not. Relationships between predicates can be stated using logical connectives. Consider, for example, the first-order formula "if "a" is a philosopher, then "a" is a scholar". This formula is a conditional statement with ""a" is a philosopher" as its hypothesis and ""a" is a scholar" as its conclusion. The truth of this