LING 1010 Lecture Notes - Lecture 8: Noam Chomsky
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The problem with this is that there is no guarantee that the relevant evidence will be. The benefit is that you can eliminate potential infinite sets from consideration. Fact 2: the input that children receive when learning their language is finite. Has to be true because humans learn language in a finite amount of time. Fact 1: all human languages can be characterized as an infinite set of sentences. The subsets of an infinite set can be infinite too. You can also have a finite subset of an infinite set. Positive evidence: evidence about which items are present in the infinite set given, might happen, might not. Negative evidence: evidence about which items are absent from the infinite set test hypotheses until you find the right one. Language learning is the generalization from a finite subset to an infinite set. Negative evidence in language would be some sort of response by the parent after a child produces an ungrammatical sentence.