
Applied Math Applied Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 16th, 2013, 08:09 PM  #1 
Member Joined: Sep 2013 Posts: 43 Thanks: 0  MthLogic  Can u help me find out where I made the mistakes?
I'm really trying to understand these things... Consider the domain D = fall CSC courses and all MAT courses, and the predicate symbols C(x): "x is a CSC course", M(x): "x is a MAT course", and P(x; y): "course x is a prerequisite for course y". Using only these symbols (in addition to appropriate connectives and quantiers), give a clear symbolic statement that corresponds to each given English sentence. Quantiers may only be over the domain D. Part (a) CSC108 is a prerequisite for CSC148. ? x ? D, ? y ? D, C(x) ? C(y) ? P(x; y) Part (b) There is no prerequisite for CSC104. ? x ? D, ? y ? D, C(y) ? 星(x; y) Part (c) Every course has a prerequisite. ? x ? D, ? y ? D, P(x; y) Part (d) No course is a prerequisite for itself. ? x ? D, 星(x; x) Part (e) Some CSC course has a prerequisite. ? x ? D, ? y ? D, C(y) ? P(x; y) Part (f) Every MAT course has a prerequisite. ? x ? D, ? y ? D, M(y) ? P(x; y) Could you tell me where I made the mistakes? And how would they look if they were expressed correctly? 
October 16th, 2013, 11:35 PM  #2  
Senior Member Joined: Jun 2013 From: London, England Posts: 1,316 Thanks: 116  Re: MthLogic  Can u help me find out where I made the mista Quote:
Quote:
? x ? D, ? y ? D, C(x) ? 星(y; x) Quote:
? y ? D, ? x ? D, P(x; y) Quote:
Quote:
? y ? D, ? x ? D, C(y) ? P(x; y) Quote:
? y ? D, ? x ? D, M(y) ? P(x; y)  

Tags 
find, made, mistakes, mthlogic 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Need someone to fix my quick mistakes  livestrong136  Calculus  2  May 24th, 2012 06:40 AM 
Please Fix my Grade 12 Calculus Mistakes!!!!  livestrong136  Calculus  0  May 13th, 2012 02:46 PM 
Would you find any mistakes on this schema?  ducnhuandoan  Number Theory  5  March 14th, 2012 12:48 AM 
Find the center of the curve in 3D made by 4points  aminjam  Applied Math  0  November 6th, 2008 10:57 AM 
Mistakes occur at all levels. ;)  roadnottaken  Algebra  4  February 12th, 2007 03:09 PM 