Correct the Sentence

It is a true fact

= It is a  fact 

In formal English, when making a comparison using "than" between two subjects, it is often preferred to complete the comparative clause with an auxiliary verb to ensure grammatical precision and parallelism. The original sentence, "He learns better than you," while sometimes accepted in informal contexts because "you" can function as both a subjective and objective pronoun, can be made more explicit. By adding "do" after "you," the sentence "He learns better than you do" clearly indicates that the comparison is between "He" and "you" as subjects performing the action of learning, thus completing the implied clause "than you learn." This construction removes any potential ambiguity and adheres to a more formal grammatical structure.