Logic by formal definition is reasoning conducted/assessed according to strict principles of validity. In my mind, logic is a series of deductions that are found by the most common means with very blatant evidence. It’s a “scientific process” in my opinion considering I grew up with STEM since I was small. Logic is finding visual evidence or extremely common reasons to deduce a conclusion. The sky is blue, why? Because it is visibly blue and most people see it as blue, so the most logical conclusion is that the sky is blue. Logic is the quickest, easiest, most common, and visually evident to the majority of people and/or that can be deduced by common sense.