Resolution in FOL — AI Technical Interview Questions & Answers

Resolution in FOL

Resolution in FOL

  • Resolution proves by refutation: add the negated query, convert to CNF, resolve until empty clause (contradiction) or you give up. Works for PL and, with unification, FOL. Complete for FOL in theory, can be slow.
  • Viva sketch: to prove Q, assume ¬Q, derive □. Don’t write a 20-step CNF live unless they insist — explain the idea.
  • Output: idea / do / check for Resolution in FOL. Fill those three in the viva.

Technical Interview Tip: Refutation idea in three steps.

Code Examples for Resolution in FOL

Example

# Resolution in FOL
print("idea :", "Resolution in FOL")
print("do   : one tiny example on paper")
print("check: one failure case")

Output: idea / do / check for Resolution in FOL. Fill those three in the viva.

How to Explain Resolution in FOL to an Interviewer

Explain Resolution in FOL as if you are teaching a junior — definition, then one example.

Refutation + CNF + resolve. Empty clause = proved.

What does the example print, and what does that prove?

idea / do / check for Resolution in FOL

What mistake do freshers make with Resolution in FOL?

Only the buzzword, no example