Weak Analogy (fallacy of weak induction)
conclusion depends on defective analogy. x has properties a, b,c,d, y has properties a, b,c. So therefore Y has property D. Ex: I am taking this class in IT building and it is math like, long, hard, confusing, and boring. I am taking another class in the fall that is in the IT building so it must be math like, long, hard, confusing, and BORING (since it is property D).