sigma-algebras

Verify sigma-algebra axioms and check function measurability using Z3 and SymPy.

3.9k|296|Updated Dec 23, 2025
One-click install
npx skills add https://github.com/parcadei/Continuous-Claude-v3 --skill sigma-algebras-parcadei
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sigma-algebras
Source: https://github.com/parcadei/Continuous-Claude-v3/tree/main/.claude/skills/math/measure-theory/sigma-algebras
Command: npx skills add https://github.com/parcadei/Continuous-Claude-v3 --skill sigma-algebras-parcadei

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires z3-solver, sympy, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides strategies and tools for solving problems related to sigma-algebras in measure theory, ensuring mathematical rigor and correctness.

Core Features & Use Cases

  • Axiom Verification: Checks if a given collection of sets satisfies the axioms of a sigma-algebra.
  • Sigma-Algebra Generation: Assists in constructing the smallest sigma-algebra containing a given collection of sets, often using Dynkin's pi-lambda theorem.
  • Measurability Testing: Helps verify if a function is measurable with respect to given sigma-algebras.
  • Use Case: When proving properties of random variables or probability spaces, you need to ensure the underlying sigma-algebras are correctly defined and functions are measurable.

Quick Start

Use the sigma-algebras skill to verify the axioms for a sigma-algebra.

Frequently Asked Questions about sigma-algebras

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify if a collection of sets satisfies sigma-algebra axioms?

You can generate the smallest sigma-algebra containing a given collection of sets by applying Dynkin's pi-lambda theorem. The skill constructs the required sigma-algebra systematically, ensuring mathematical rigor and correctness for your measure theory problems.

How do I check if a function is measurable with respect to given sigma-algebras?

To check function measurability with respect to given sigma-algebras, the skill utilizes SymPy for symbolic simplification of preimage operations. It verifies whether your function's preimages align correctly with the target measurable spaces.

Can I use Z3 and SymPy together for formal proofs in measure theory?

Yes, you can use Z3 and SymPy together for formal proofs in measure theory. Z3 handles the formal axiom verification and logical proofs, while SymPy performs the symbolic simplification required for complex preimage operations and set manipulations.

When do I need to generate a sigma-algebra using the pi-lambda theorem?

You need to generate a sigma-algebra using the pi-lambda theorem when proving properties of random variables or probability spaces. This approach constructs the smallest sigma-algebra containing a given collection of sets, ensuring underlying structures are correctly defined.

Does this measure theory solver work for proving properties of probability spaces?

Yes, this measure theory solver works for proving properties of probability spaces by ensuring underlying sigma-algebras are correctly defined and functions are measurable. It provides mathematical rigor for verifying axioms and checking measurability in probability theory.