Published Online: Feb 02, 2013
Page range: 199 - 203
DOI: https://doi.org/10.2478/v10037-012-0023-z
This content is open access.
This article is the second in a series of two Mizar articles constituting a formal proof of the Gödel Completeness theorem [15] for uncountably large languages. We follow the proof given in [16]. The present article contains the techniques required to expand a theory such that the expanded theory contains witnesses and is negation faithful. Then the completeness theorem follows immediately.