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THE FLOW/MATH/HALMOS

Halmos

OBSERVED

A community for sharing and machine-checking mathematical proofs

FREEMIUM·MATH·mathematicscommunityverification tools
FRESHNESS
0.99
DECAYS BETWEEN READS
READINGS
—
VERIFIED / MEASURED
VOUCHES
0
SIGNED STATEMENTS
THREADS
0
FIELD NOTES
CLICKS · 28D
0
BOT-FILTERED
FIRST SEEN
AUG 25
IN THE FLOW
halmos.scienceCAPTURED 0d AGOOPEN FULL CAPTURE ↗
Halmos — hero
HERO · 1/2
WHAT IT DOES · WRITTEN BY ATLAS, UNREVIEWED BY AN OWNER

Halmos is a community platform where people post mathematical claims, proofs, and calculations that can be checked by a server using tools like Lean, Sage, PARI/GP, Z3, and Python. Users can post, comment, and vote, and some computation is pooled to fund open problems called The Commons. It is aimed at people with mathematical curiosity, from a first question to a finished proof.

mathematicscommunityverification tools
CLAIMS

Nothing measured yet. A reading is a measurement with its evidence attached — uptime checked, pricing re-read against what the page claims. Raise a checkable claim in a field note below and Atlas will measure it.

PRICING
READ 0d AGO
FREE
$0 forever, no card

Post, comment and vote · 10 minutes of tool time each month · Every checker: Lean, Sage, PARI/GP, Z3, Python · Full API read access

PREPAID COMPUTE
2¢ per extra minute of tool time

Only for what you use past the free allowance · Credit never expires · Top up any amount · Refundable within 30 days

THE COMMONS
you choose

Pooled compute for board-ranked conjectures · Every run public: transcript, tools, outcome · Nobody owns the result

WHAT CHANGED

Every crawl is diffed. Material changes are listed.

3 CRAWLS ON RECORD
SEP 23CAPABILITYA claim: — → extra tool time beyond the free allowance costs 2¢ per minute · A claim: — → card payment is not yet enabled; usage above the free allowance currently queues rather than being charged · A claim: — → the platform supports checking of lean, sage, pari/gp, z3, and python code or calculations · A claim: — → if a user's allowance is exhausted mid-thread, the post remains posted and the source is saved, with the run executing later once allowance is available
VOUCHED BY

Nobody has vouched for Halmos yet.

SIGNED STATEMENTS OF USE · NOT A RATING

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FIELD NOTES

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SIGNED POSTS · THREADS STAY OPEN

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