potiuper
Re:Torsors (2010)
on Tuesday November 22, 2022 @08:16PM (#33713841)
Re:Binary Lambda Calculus
on Saturday November 19, 2022 @07:00PM (#33676425)
Hypothetical Syllogism (B) is shorter than & allows deriving distributivity of implication (S).
Re:Computer Proof ‘Blows Up’ Centuries-Old Fluid Equations
on Saturday November 19, 2022 @06:09PM (#33675921)
An infinite number may be possible, but the truth about an infinite number of unprovable truths is the inability to enumerate them to their end. So, a desire to minimize their number arises to allow enumeration. A further goal is to find such a system with derivable proofs such that the proofs have desirable properties such as completeness, consistency, decidability or reducability. Consistency is usually desired to prevent absurdity resulting in the trade off between completeness and decidability, of which may appear to be a choice.
Re:Binary Lambda Calculus
on Wednesday November 09, 2022 @06:48PM (#33539914)
Iota appears to be the same as the "X" combinator as found by Jeroen Fokker: The Systematic Construction of a One-Combinator Basis (1989) that amounts to concatenating (material) implication's reduction & distributivity axioms ("S" & "K") in addition to first binding another variable "x", which is "f" in the Iota definition. Shorter than "x" locally complete & consistent (indecisive) single implication axioms exist as one found by Meredith and listed by the now deceased Dolph Ulrich: https://web.ics.purdue.edu/~dulrich/C-pure-intuitionism-page... See also: https://math.stackexchange.com/questions/153163/what-is-the-... The shortest single implication axiom appears to be an open question (good luck trying to rub the djinn the right way) along with if distributivity is the shortest local completeness (weakening) axiom in addition to having to analyze Meredith's & others on Ulrich's list for self-interpreter lengths, but it seems unlikely they will be shorter given the pattern of decreasing self-interpreter length with increasing complexity of the underlying axiom system.
Re:C Minus Minus
on Wednesday October 19, 2022 @11:04AM (#33263273)
Re:Show HN: Lambda-8cc – An x86 C compiler written in untyped lambda c...
on Thursday October 06, 2022 @10:48PM (#33116874)
See https://news.ycombinator.com/item?id=31018900 for minimal (normal) axiom bootstrap instead of S (distribution of implication) & K (reduction)
Mission Juno
Observable Universe Rectangular Map (2021)
Re:Venetians fear ‘museum relic’ status as population drops below 50k
on Thursday August 11, 2022 @04:42PM (#32431464)
As the https://en.wikipedia.org/wiki/List_of_cities_in_Italy shows some are better off; venice is unique: https://www.businessinsider.com/the-economic-history-of-veni...
Re:From maximum force to physics in 9 lines – and implications for qua...
on Saturday August 06, 2022 @10:35AM (#32368462)
Re:From maximum force to physics in 9 lines – and implications for qua...
on Saturday August 06, 2022 @10:09AM (#32368231)
Least is not the same as stationary.
U.S. House passed $280B Chips and Science Act
Webb Reveals Steamy Atmosphere of Distant Planet
Deepest infrared image of universe
Re:Quantum scientists deliver world’s first integrated circuit at the ...
on Sunday July 10, 2022 @02:54AM (#32042449)
Re:Why BART uses a nonstandard broad gauge
on Saturday July 09, 2022 @12:22AM (#32031643)
Looking at the chart on the bottom left on pg 12 https://www.bart.gov/sites/default/files/docs/BART%20Stabili... 6 ft+ gauge rail looks to be required just to get the 0 margin of stability to withstand the 100 mph+ wind speeds San Francisco has seen https://www.nbcbayarea.com/news/local/23-years-ago-strong-st... Although, it would make more sense to stop running the trains in 67 mph+ winds due to the average individual being pushed adversely by the wind such as at a station.
Re:50-Year Mortgages That Children Can Inherit
on Monday July 04, 2022 @06:49PM (#31982506)
Property taxes can also go up and the government can claim eminent domain.
Re:50-Year Mortgages That Children Can Inherit
on Monday July 04, 2022 @02:16AM (#31974004)
AKA rent
Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life (2021)
Re:He, Who Will Not Reason, Is a Bigot (2018)
on Sunday July 03, 2022 @02:46AM (#31965639)
Some on who will not reason is not a bigot, but rather emotional. A bigot is some one whose decisions are prejudiced such that a small set or even a single factor that has been previously evaluated is used to pass judgement; the sentiment associated with the factor(s) is usually attributed through an influential party (by god).
Re:How the Higgs Boson Ruined Peter Higgs’s Life
on Saturday July 02, 2022 @02:43PM (#31961319)
If its really an issue, then Higgs could ask for it be called some thing more descriptive such as the integral (spin) mass field/particle/mechanism.
Mathematicians Resurrect Hilberts 13th Problem (2021)
Car door windows do not stop UV rays (2016)
Re:Blacklist is not a racist word
on Thursday June 30, 2022 @06:30PM (#31939530)
If master card no longer offers credit cards, then any slave account could be discredited occurring with deactivated debit cards.
Re:Start all of your commands with a comma (2009)
on Thursday June 23, 2022 @05:30PM (#31855386)
Again, to reiterate, the original comment was not a statement that this should not have been reposted. I am not sure how I could make that clearer? I have read the site guidelines. Many of them are subjective and inconsistent with unknown applicability. If you, as the administrator, are unable to accept that evaluation, then please just delete this account and all associated posts.
Re:Potato diet community trial
on Wednesday June 22, 2022 @02:05PM (#31839609)
As long as one does not have various gastrointestinal disorders and accepts the adverse cardiovascular, cancer, and diabetes risks. A lack of dietary vitamin D also does not risk immediate death like a lack of oxygen, but similarly increases risk of adverse conditions like rickets.
Re:Potato diet community trial
on Wednesday June 22, 2022 @03:12AM (#31832905)
"No dairy": would result in a Vitamin D deficit unless the some other food fortified with vitamin D is used, person is living in a tropical region with little clothing, or the multivitamin option is chosen over the emphasized B12 supplement. It also lacks fiber: https://spoonuniversity.com/lifestyle/potatoes-and-milk-is-t...