Answer:
Deductive logic
Explanation:
The Cognitive development theory of Jean Piaget suggests that there are four stages through which a child develops mentally.
The fourth or the last stage of the theory is the Formal Operational Stage. <u>This occurs at the age of 12 and above. In this stage, a child develops through certain skills such as </u><u>systematic planning</u><u>, </u><u>deductive reasoning</u><u>, etc</u>.
According to Piaget, deductive logic or reasoning is a type of reasoning that involves using of general statement or hypothesis to reach a particular outcome.
The sentence given in the question is an example of deductive reasoning.
<u>The general statement is </u><u><em>"if all people are equal" </em></u><u>and the outcome abstracted from this general statement is </u><u><em>"then you and I must be equal."</em></u>
So, the correct answer is deductive reasoning.