4. Logic and Engineering

Mind has different knowledge and information generation duties among which is the rational inference that can be derived from the philosophical arena of thoughts by reasoning towards identification of relationship between causatives and end results. The most primitive and effective means of such derivations is the logical principles. Human beings are not capable easily to identify mutual relationships rationally or even experimentally between more than two variables; one is the causative (antecedent, input) and another is the resultant (consequent, output) variables. In order to get preliminary idea about the relationship two fundamental logic questions must be asked. The first one is concerned with the proportionality and it asks “Is the relationship between the two variables (antecedent and consequent) directly or indirectly proportional?” The type of relationship can be felt intuitively after reasoning under the light of available information set by logical principles, and finally, the answer is either “yes” or “no”. The final answer provides the type of relationship in the linear world.