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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: First premise: Terry is a grandson of Ward. Second premise: Every grandson of Paul is an uncle of Earl and a grandson of Ward. We may conclude that Terry is a grandson of Paul."
Is the argument, given the explicitly stated premises, deductively valid or invalid?
Options:
- valid 
- invalid

Discussion

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Source and history

task_id
c1b2b735-3d97-5448-948f-46b349ec4250
task_key
formal~5ffallacies--main--c1b2b735-3d97-5448-948f-46b349ec4250
task_revision_id
1
config / split
formal_fallacies / main

Official source

initial import