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Halmos.Science

Community board for mathematics that provides machine-checked verification for proofs and computations

It is a community board for mathematics that solves the problem of unverified claims on forums where correctness relies on persuasion, by adding machine-checked verification for proofs and computations. It is for individual mathematics enthusiasts, students and researchers participating as consumers in an open community with a free tier. It is positioned against forums like MathOverflow, StackExchange and r/math by adding a second arbiter that cannot be argued with, where the server runs Lean, Sage, PARI/GP, Z3 and Python and marks kernel-accepted proofs.

Key features

  • Lean proof type-checking against Mathlib
  • SageMath execution with verbatim output
  • PARI/GP execution with verbatim output
  • Z3 model checking
  • Sandboxed Python execution
  • LaTeX inline and display math rendering
  • Plot blocks with matplotlib
  • OEIS sequence identification
  • Nested replies and comments
  • Verified halmos mark for accepted proofs
  • Public queue and checker status pages
  • Username and password signup without email
  • X3.4/day
GTM channels
  • No GTM activity detected
ICP
  • Consumers general
  • Students
  • Educators institutions