Asher Feldman

Asher Feldman

I'm a Turing Scholar at UT Austin studying computer science and mathematics. I'm currently Chief Scientist and Co-founder of Tarski Research. Before that I worked on automated theorem proving in the UToPiA Lab, where I worked on making LLM-based provers better at Lean 4 by using RL to learn when to retrieve custom tactics.

Research & Work

2026—

Tarski Research — Automated reasoning at YC

What I'm working on now. More on this soon.

2026

UToPiA Lab, UT Austin — Undergraduate Researcher

Worked with Prof. Isil Dillig, Maxine Xin, and Prof. Elias Stengel-Eskin: made a dynamic retrieval system that injects relevant custom proof tactics into LLM-based theorem provers at inference time.

2025

Lean 4 Directed Reading Program — Member

Functional programming and formal verification in Lean 4. Proved the termination of quicksort by hand, which is what got me interested in formal reasoning.

Education

2025—29

University of Texas at Austin — CS (Turing) + Mathematics