Question: A if and only if B B if and only if C Fact: B is false. A . A is false, C cannot be deduced
A if and only if B
B if and only if C
Fact: B is false.
A A is false, C cannot be deduced
B A cannot be deduced, C cannot be deduced
C A cannot be deduced, C is false
D A is false, C is false
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