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Predicate Logic Semantics with Variable Assignments (Part 1)

This video is part 1 of a two-part video on predicate logic semantics. The video explains two common issues with defining the valuation function a predicate logic semantics. It then introduces the notion of a variable assignment and talks about how this variable assignment can be used to define a valuation function for open well-formed formulas. The video supposes basic familiarity with predicate logic semantics. For more on this, see Predicate Logic: Symbols:    • Predicate Logic: Symbols   Predicate Logic: Basic Syntax:    • Predicate Logic: Basic Syntax   Predicate Logic Semantics: Models:    • Predicate Logic Semantics - Models   Predicate Logic: Valuation of Unquantified Formulas:    • Predicate Logic: Valuation of Unquant...   Predicate Logic, Valuations, Part 2 (Quantified Wffs):    • Predicate Logic, Valuations, Part 2 (...   _____________________________________________________ • Symbolic Logic: Syntax, Semantics and Proof (Amazon): https://amzn.to/2RX7ALb • SUBSCRIBE to my channel for more videos: https://goo.gl/ukVPLo • Follow me on Twitter -   / davidagler   • Logic Website: http://davidagler.com/teaching/logic....