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sowjiaksh
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sowjiaksh
Saturday, Jan 11

If it is a sunny day, birds sing.

If birds sing, Jane is happy.

So, if Jane is not happy, it’s not a sunny day.

Isn't the conclusion here false? The two premises are sufficient conditions. So just because /Jane is no happy, does not mean /sunny day. There could be many other sufficient conditions for her to be happy, birds singing is only one of them. Can someone help explain?

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