noemaMATHEMATICS LAB

SMALL QUESTIONS. BIG UNKNOWNS.

A little closer
to knowing.

Some questions fit on a napkin.
Their answers can take centuries.
Let’s start with something we can check.

Enter the lab

REAL CALCULATIONS · OPEN QUESTIONS · NO SHORTCUTS TO PROOF

FIELD NOTE 001THE COLLATZ ORBIT

One number. 111 steps. Back to one.

27 → 1

Why does every positive number seem to come home?

OUR STARTING POINT

A thousand examples can support an idea.
One counterexample can change everything.

01 / GET YOUR HANDS ON AN IDEA

Wonder. Then check.

No advanced math needed.
Pick a question and follow the numbers.

NOEMA / WORKBENCHBROWSER EXPERIMENT
AN OPEN CONJECTURE

The long
way home.

Pick a whole number. Even? Halve it. Odd? Multiply by 3 and add 1. Repeat.

Will you always reach 1?

Starts 1–10,000. Stops at 1 or 1,000 steps.

TRAJECTORY / LOGARITHMIC SCALEREACHED 1
111steps to reach 1
9,232highest value reached
1final value

This number found its way home. Proving that every positive number does is the unsolved part.

Live, bounded examples in your browser. The research figures below are independently generated by Python.

02 / THE NOTEBOOK IS OPEN

What we actually know.

Small, reproducible checks.
Every result comes with its boundary.

SAT / EXHAUSTIVE SMALL CORPUS

18,069

formulas checked.

Zero incorrect decisions. Our simple method got stuck on 10 unsatisfiable cases.

Inspect the SAT report ↓

COLLATZ / STARTS 1–10,000

10,000

journeys to one.

The longest took 261 steps, starting at 6,171. Every start reached one within 1,000 steps.

Follow the longest journey ↗

Loading the latest Python research records…

THE IMPORTANT BIT

These reproduce known results. No open problem has been solved.

NEW FIELD NOTE / FIRST DESCENT

A million is a boundary.
Not the finish line.

Every start from 2 through 1,000,000 eventually fell below its starting number. Two implementations agreed on every result.

Inspect the first-descent report ↓
287ordinary steps before first descent

626,331 → … → 597,017

The longest first descent in this range.
All 999,999 starts descended within the 1,000-step cap.

LATEST FIELD NOTE / WRITTEN ALGEBRA + A CHECKED LEMMA

28 of 32 remainder groups.

Two more groups have an exact eight-step first descent: numbers with remainder 11 or 23 when divided by 32. Together with the earlier arguments, written algebra covers 28 groups. Remainders 7, 15, 27 and 31 remain outside these proofs.

Lean independently checks one small theorem: every number above one that leaves remainder 1 when divided by 4, such as 5, 9 and 13, first descends in exactly three ordinary steps. The eight-step arguments are written proofs, not yet Lean-checked. None of this proves Collatz termination.

Inspect the checked Lean proof ↓ · Verification record ↓ · Follow the algebra ↗

03 / SMALL STEPS, DEEPER QUESTIONS

Build understanding.
Then raise the stakes.

A research path, not a difficulty ranking.
Simple to ask doesn’t mean easy to solve.

  1. 01

    Check the tools.

    Known answers, tiny truth tables, independent calculations.

    REPRODUCED
  2. 02

    Follow the integers.

    Goldbach, Collatz and twin primes. Bounds: 100 → 1,000 → 10,000.

    BOUNDED CHECKS
  3. 03

    Study where methods struggle.

    First descent checked through 1,000,000. Next: residue classes, prime gaps and structured SAT.

    NEXT EXPERIMENTS
  4. 04

    Face the bigger unknowns.

    P versus NP. Riemann. Start with the literature and exact proof obligations.

    LONG-TERM HORIZON

THE WAY WE WORK

Curiosity is the spark.
Checking is the work.

Write down the question. Set a boundary. Run the calculation. Check it another way. Keep the awkward cases.

Then ask what the result really says, and what it leaves unanswered.

Read the research notebook ↗

A FEW PLACES TO KEEP THINKING

Clay / P versus NP ↗Tao / Collatz orbits ↗Oliveira e Silva et al. / Goldbach ↗Maynard / Twin primes ↗