Forums before death by AOL, social media and spammers... "We can't have nice things"
|    sci.logic    |    Logic -- math, philosophy & computationa    |    262,912 messages    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
|    Message 262,856 of 262,912    |
|    olcott to Mikko    |
|    Re: on ignoring the undecidable    |
|    09 Feb 26 09:36:55    |
      XPost: comp.theory, sci.math       From: polcott333@gmail.com              On 2/9/2026 8:57 AM, Mikko wrote:       > On 07/02/2026 18:43, olcott wrote:       >> On 2/7/2026 10:33 AM, Richard Damon wrote:       >>> On 2/7/26 10:07 AM, olcott wrote:       >>>> On 2/7/2026 8:42 AM, Richard Damon wrote:       >>>>> On 2/6/26 11:04 PM, olcott wrote:       >>>>>> When a truth predicate is given the input:       >>>>>> "What time is it?"       >>>>>> and is required to say True or False       >>>>>> the only correct answer is BAD INPUT       >>>>>       >>>>> Nope, as the statement is NOT "True", thus it is false.       >>>>>       >>>>> Unless you are asserting that logic doesn't exist in the domain of       >>>>> the non-contray excluded middle where most logic assumes to live.       >>>>>       >>>>       >>>> Dead obvious Type mismatch error.       >>>>       >>>       >>> And "Type mismatches" are not true statements.       >>>       >>> I guess you are admitting that you system isn't "binary", but       >>> violates the principle of the excluded middle.       >>       >> When we extend formal systems to include formalized       >> natural language we often encounter expressions that       >> are not truth apt.       >>       >> Conventional logic and math have been paralyzed for       >> many decades by trying to force-fit semantically       >> ill-formed expressions into the box of True or False.       >       > Logic is not paralyzed. Separating semantics from inference rules       > ensures that semantic problems don't affect the study of proofs       > and provability.       >              Then you end up with screwy stuff such as the psychotic       https://en.wikipedia.org/wiki/Principle_of_explosion              --       Copyright 2026 Olcott |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
(c) 1994, bbs@darkrealms.ca