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On 7/10/2025 4:05 AM, Mikko wrote:That's right: if a contradiction is inferred then at least one of theOn 2025-07-09 14:16:44 +0000, olcott said:Then contradiction proves falsehood.
On 7/9/2025 9:04 AM, joes wrote:Often one must work with sentences that are not known to be true butAm Wed, 09 Jul 2025 07:31:59 -0500 schrieb olcott:False premises must be immediately rejected.On 7/9/2025 3:29 AM, Mikko wrote:On 2025-07-08 14:18:32 +0000, olcott said:On 7/8/2025 2:41 AM, Mikko wrote:Should only false conclusions be derivable from false premises?True conclusion from false premeises is fairly common. But that isIt proves that logic is fundamentally incorrect on this point.
not relevant.
Logic must be a sequence of truth preserving operations or it is
wrong.
not known to be false, either.
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