This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: ( D C D ) Idempotency of ( A B ) ( C D ) Idempotency of A B C D Associativity of 4. Give a formal proof for the following argument: 1 A B 2 B 3 A ( D E ) Proof: 1 A B 2 B 3 A 4 A ( D E ) Intro: 3 5 B 6 Intro: 2, 5 7 A ( D E ) Elim: 6 8 A ( D E ) Elim: 1, 34, 57 2 5. Give a formal proof for the following argument: 1 A B C 2 A B C Proof: 1 A B C 2 A 3 A 4 Intro: 2, 3 5 A Intro: 24 6 A B C Intro: 5 7 B 8 A B C Intro: 7 9 C 10 C 11 Intro: 9, 10 12 C Intro: 1011 13 C 14 Intro: 12, 13 15 C Intro: 1314 16 A B C Intro: 15 17 A B C Elim: 1, 26, 78, 916 3...
View
Full
Document
This note was uploaded on 09/19/2011 for the course PHILOS 12A taught by Professor Fitelson during the Spring '08 term at University of California, Berkeley.
 Spring '08
 FITELSON

Click to edit the document details