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← Formalising a proof in Lean currently takes about ten times the effort of writing it out: doable, but annoying.
17 connected korrents · 15 moments from 21 Jan 2019 to 27 Sept 2026.
Everything filed under formal proof
formal proof
Everything filed under mathematics
mathematics
Everything filed under nuclear power
nuclear power
Everything filed under AI writing
AI writing
Everything filed under software quality
software quality Rests on Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: Formalising a proof in Lean currently takes about ten times the effort of writing it out: doable, but annoying. Formalising a proof in Lean currently takes about ten times the effort of writing it out: doable, but annoying. Last stated a year ago
14 Jun 2025
TT
Terence Tao — holds since 2025-06-14 — tap for who they are
Rests on: When formalising a proof costs no more than writing it, mathematics will flip: papers written in Lean first, and journals refereeing only for significance because correctness is certified. — tap to centre the map on it When formalising a proof costs no more than writing it, mathematics will flip: papers written in Lean first, and journals refereeing only for significance because correctness is certified. Last stated a year ago
14 Jun 2025
TT
Terence Tao — holds since 2025-06-14 — tap for who they are
Same subject: AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck. — tap to centre the map on it AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck. Last stated 6 months ago
22 Apr 2026
MK
Martin Kleppmann — holds since 2026-04-22 — tap for who they are
Same subject: Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to. — tap to centre the map on it Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to. Last stated 6 months ago
22 Apr 2026
MK
Martin Kleppmann — holds since 2026-04-22 — tap for who they are
Same subject: Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost. — tap to centre the map on it Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: Nuclear power plants, the standard example of software that must be proved correct, do not care about formal verification: thorough testing is enough for them. — tap to centre the map on it Nuclear power plants, the standard example of software that must be proved correct, do not care about formal verification: thorough testing is enough for them. Last stated 3 months ago
29 Jul 2026
HW
Hillel Wayne — holds since 2026-07-29 — tap for who they are
Same subject: Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it. — tap to centre the map on it Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it. Last stated 4 months ago
30 Jun 2026
GS
Grant Sanderson — holds since 2026-06-30 — tap for who they are
Same subject: There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in. — tap to centre the map on it There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: AI will increasingly produce mathematical proofs, just as it already writes most code. — tap to centre the map on it AI will increasingly produce mathematical proofs, just as it already writes most code. Last stated a month ago
11 Sept 2026
DL
Daniel Lemire — holds since 2026-09-11 — tap for who they are
Same subject: Formalizing math is a translation task, so AI will boost top mathematicians' productivity more than top writers'. — tap to centre the map on it Formalizing math is a translation task, so AI will boost top mathematicians' productivity more than top writers'. Last stated 6 months ago
7 Apr 2026
JB
Jamie Brandon — holds since 2026-04-07 — tap for who they are
Same subject: America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it. — tap to centre the map on it America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it. Last stated 2 months ago
15 Aug 2026
IT
Isaiah Taylor — holds since 2026-08-15 — tap for who they are
Same subject: American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation. — tap to centre the map on it American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation. Last stated 2 years ago
6 Apr 2025
MH
Molson Hart — holds since 2025-04-06 — tap for who they are
Same subject: Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident. — tap to centre the map on it Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident. Last stated 2 months ago
1 Sept 2026
TC
Tyler Cowen — holds since 2026-09-01 — tap for who they are
Same subject: 95 percent of the software made in an age of abundance will be shitty, and shitty software is easy to deal with because it goes away. — tap to centre the map on it 95 percent of the software made in an age of abundance will be shitty, and shitty software is easy to deal with because it goes away. Last stated 4 weeks ago
23 Sept 2026
GT
Geoff Teehan — holds since 2026-09-23 — tap for who they are
Same subject: A coding agent left to run over a weekend returns work that is half good, a quarter garbage and a quarter in need of repair. — tap to centre the map on it A coding agent left to run over a weekend returns work that is half good, a quarter garbage and a quarter in need of repair. Last stated a year ago
18 Aug 2025
CB
Clay Bavor — holds since 2025-08-18 — tap for who they are
Same subject: A developer using AI coding tools remains responsible for reviewing the code they ship. — tap to centre the map on it A developer using AI coding tools remains responsible for reviewing the code they ship. Last stated 7 months ago
10 Mar 2026
JS
Jon Seager — holds since 2026-03-10 — tap for who they are
Same subject: A CEO who sends out an AI-written strategy memo is modelling that it is fine to outsource thinking and strategy. — tap to centre the map on it A CEO who sends out an AI-written strategy memo is modelling that it is fine to outsource thinking and strategy. Last stated 3 weeks ago
27 Sept 2026
MG
Molly Graham — holds since 2026-09-27 — tap for who they are
Same subject: AI can now produce in minutes work that used to take weeks to build. — tap to centre the map on it AI can now produce in minutes work that used to take weeks to build. Last stated 5 months ago
26 May 2026
CB
Carlos Alexandro Becker — holds since 2026-05-26 — tap for who they are
At the centre
Formalising a proof in Lean currently takes about ten times the effort of writing it out: doable, but annoying.
Holds Read this korrent →
When formalising a proof costs no more than writing it, mathematics will flip: papers written in Lean first, and journals refereeing only for significance because correctness is certified.
Holds
AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck.
Holds
Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to.
Holds
Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost.
Holds
Nuclear power plants, the standard example of software that must be proved correct, do not care about formal verification: thorough testing is enough for them.
Holds
Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it.
Holds
There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in.
Holds
AI will increasingly produce mathematical proofs, just as it already writes most code.
Holds
Formalizing math is a translation task, so AI will boost top mathematicians' productivity more than top writers'.
Holds
America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it.
Holds
American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation.
Holds
Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident.
Holds
95 percent of the software made in an age of abundance will be shitty, and shitty software is easy to deal with because it goes away.
Holds
A coding agent left to run over a weekend returns work that is half good, a quarter garbage and a quarter in need of repair.
Holds
A developer using AI coding tools remains responsible for reviewing the code they ship.
Holds
A CEO who sends out an AI-written strategy memo is modelling that it is fine to outsource thinking and strategy.
Holds
AI can now produce in minutes work that used to take weeks to build.
Holds