First-Order Logic — AI Technical Interview Questions & Answers

First-Order Logic

First-Order Logic

  • FOL adds objects, predicates, functions, and quantifiers ∀ ∃. Student(Asha). ∀x Student(x) → Human(x). You can talk about “every pit” without a new letter per square. Richer than propositional logic, harder to compute.
  • Trap: mixing up ∀ and ∃. “There exists a safe square” is not “all squares are safe”.
  • Output: idea / do / check for First-Order Logic. Fill those three in the viva.

Technical Interview Tip: One ∀ sentence + one ∃ sentence.

Code Examples for First-Order Logic

Example

# First-Order Logic
print("idea :", "First-Order Logic")
print("do   : one tiny example on paper")
print("check: one failure case")

Output: idea / do / check for First-Order Logic. Fill those three in the viva.

How to Explain First-Order Logic to an Interviewer

Explain First-Order Logic as if you are teaching a junior — definition, then one example.

Objects + predicates + ∀ ∃. Richer than PL, slower.

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

idea / do / check for First-Order Logic

What mistake do freshers make with First-Order Logic?

Only the buzzword, no example