{"id":156437,"date":"1997-03-01T00:00:00","date_gmt":"1997-03-01T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/some-undecidable-problems-related-to-the-herbrand-theorem\/"},"modified":"2018-10-16T21:42:41","modified_gmt":"2018-10-17T04:42:41","slug":"some-undecidable-problems-related-to-the-herbrand-theorem","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/some-undecidable-problems-related-to-the-herbrand-theorem\/","title":{"rendered":"Some undecidable problems related to the Herbrand theorem"},"content":{"rendered":"<div class=\"asset-content\">\n<p>We improve upon a number of recent undecidability results related to the so\u00adcalled Herbrand Skeleton Problem, the Simultaneous Rigid E-\u00adUnification Problem and the prenex fragment of intuitionistic logic with equality.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We improve upon a number of recent undecidability results related to the so\u00adcalled Herbrand Skeleton Problem, the Simultaneous Rigid E-\u00adUnification Problem and the prenex fragment of intuitionistic logic with 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