10.2 - Yuri Balashov, PHIL 2500 Lecture Notes Applications...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Yuri Balashov, PHIL 2500 Lecture Notes Applications of PD Derivation Rules Remember: The ( x) and ( x) Elimination rules apply to entire quantified sentences only , not their parts. The basic concepts of PD: Derivability Validity Theorem Equivalence Inconsistency are similar to the basic concepts of SD. Derive: ( y) Lyy 1 ( x) (Nx L x x ) A s s u m . 2 ( x) ~ N x A s s u m . ——————— 3 4 5 6 7
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Yuri Balashov, PHIL 2500 Lecture Notes 2 Show the following argument is valid in PD: ( y [(Hy & Fy) Gy] ( z) Fz & ~ ( x) Kxb ( x) (Hx Gx) 1 ( y [(Hy & Fy) G y ] A s s u m . 2 ( z) Fz & ~ ( x ) K x b A s s u m . ————————— ( x) (Hx Gx) Show ‘( x) (Ax & Bx) (( x) Bx)’ is a theorem ( x) (Ax & Bx) (( x) Bx)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/22/2009 for the course PHIL 2500 taught by Professor Staff during the Spring '08 term at University of Georgia Athens.

Page1 / 5

10.2 - Yuri Balashov, PHIL 2500 Lecture Notes Applications...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online