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BIG-Bench Hard / Is Fred a fan of Liverpool? Are supporters of Real Madrid devotees of PSG? In…

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"Is Fred a fan of Liverpool? Are supporters of Real Madrid devotees of PSG? In European football, it is sometimes difficult to keep track of the mutual admiration and dislike. The following argument seeks to clarify some such relations: To begin with, every backer of Athletic Club is an ex-supporter of KKS Lech Poznań. Moreover, whoever is neither a devotee of Everton FC nor an ex-fan of KV Oostende is a backer of Athletic Club or an expert of Leicester City FC.finally, every expert of Leicester City FC is an ex-supporter of KKS Lech Poznań. We may conclude that everyone who is not an ex-supporter of KKS Lech Poznań is a devotee of Everton FC or not an ex-fan of KV Oostende."
Is the argument, given the explicitly stated premises, deductively valid or invalid?
Options:
- valid 
- invalid

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Source and history

task_id
05bff902-235c-54a8-9dc2-089ab8673cda
task_key
formal~5ffallacies--main--05bff902-235c-54a8-9dc2-089ab8673cda
task_revision_id
1
config / split
formal_fallacies / main

Official source

initial import