Summary

DescriptionNon-closed propositional tableau.svg	English: A non-closed tableau for the set ${\displaystyle \{a\wedge c,\neg a\vee b\}}$. This set is satisfiable, so this tableau cannot be closed. Indeed, one sees that, for every non-literal formula and every branch the formula is in, the applicable rule has been applied.
Date	5 January 2007 (original upload date)
Source	Transferred from en.wikipedia to Commons by Piquart using CommonsHelper.
Author	Tizio at English Wikipedia

Licensing

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Original upload log

• 2009-07-30 23:08 RobHar 189×270× (23459 bytes) added background
• 2009-07-30 01:00 RobHar 189×270× (23203 bytes) Convert text to path to fix display problem, change font, other tweaks
• 2007-01-05 16:46 Tizio 189×270× (3611 bytes) a non-closed tableau