Last year, a software company held a contest to generate ideas for their new logo. █████████ ██ ███ ██████ ████████ ███ ███████ ███ ███████ █████ ███████ ███████ ███████ █████████ █ ███████ ████ ███ █████████ ███ █████ ████ ███ █ ███████ ████ ███ █████████ ███ █████ ██ ██ ████ ████ ███████ ███ ████████
The author concludes that Juan must have entered the logo-generation contest. The author supports this conclusion with the following:
One of the rules stated that everyone who entered the contest would receive a T-shirt with the company’s logo.
Juan has a T-shirt with the company’s logo.
The author confuses a sufficient condition with a necessary condition. Entrance into the contest is sufficient to get the T-shirt. But that doesn’t mean it’s necessary. Maybe some people could have gotten the T-shirt without entering the contest.
The reasoning in the argument ██ ██████ ██ ████ ███ ████████
infers a causal ████████████ ████ ███ ████████ ████ ████████ █ ███████████
takes a condition ████ ██ ██████████ ███ █ ██████████ ███████ ██ ███ ████ ██ █████████ ███ ████ ███████
infers that every ██████ ██ █ █████ ███ █ ███████ ██ ██████ ██ ███ ███████ ████ ███ █████ ██ █ █████ ███ ████ ███████
has a premise ████ ███████████ ███ █████ ██ ███ ██████████
constructs a generalization ██ ███ █████ ██ █ ██████ ████████