Quote:
There a possibility it might rain tomorrow "X", therefore there is also a possibility "Y" the seeds I sowed might start to sprout the day after.


There is a possibility it might rain tomorrow, as a result of rain seed I sowed will sprout.

Otherwise seed starting to sprout is independent of rain. For example it will not rain, but seeds will still sprout; or it will rain but seeds will not sprout.

I really recommend you spend time to understand concept of validity .

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