This lecture by the instructor covers the process of converting imperative programs to formulas, focusing on verification-condition generation. It explains how to express program correctness as a verification condition and implement it as an algorithm. The lecture also delves into representing program fragments and specifications as formulas, introducing imperative statements, non-determinism, and loop-free programs. It details the construction of formulas describing relations between initial and final states of program execution, including assignments, if-else statements, and command semicolons. Examples and formula computations are provided to illustrate the concepts.