Mathematics, 11.10.2020 07:01, jgpjessi1854

HEL Items 19–20. Neil Armstrong was the first person to walk on the moon. If a person was the first to walk on the moon, then that person was Neil Armstrong.19.If a person Neil Armstrong, then that person the first person to walk on the moon.20.Since Neil Armstrong was the first person to walk on the moon, the contrapositive is . Since the contrapositive is ,
the must be true.

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HEL Items 19–20. Neil Armstrong was the first person to walk on the moon. If a person was the first...