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BIG-Bench Hard / It is not always easy to see who is related to whom -- and in which ways. The…

Problem

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input

"It is not always easy to see who is related to whom -- and in which ways. The following argument pertains to this question: To begin with, everyone who is neither a cousin of Valerie nor a classmate of Mitzi is a close friend of Kathryn or a workmate of Anita. Moreover, every close friend of Kathryn is a classmate of Mitzi or a cousin of Valerie. It follows that whoever is none of this: a cousin of Valerie or classmate of Mitzi, is a workmate of Anita."
Is the argument, given the explicitly stated premises, deductively valid or invalid?
Options:
- valid 
- invalid

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Source and history

task_id
f20ec496-54f8-5968-a8c9-26b39848b86b
task_key
formal~5ffallacies--main--f20ec496-54f8-5968-a8c9-26b39848b86b
task_revision_id
1
config / split
formal_fallacies / main

Official source

initial import