RC
Active member
 |  Subject: Urgent..pls help !! Thu Mar 18, 2010 11:44 pm | |
| 1. What are external and internal nodes ??
2. Determine if following wff is valid,satisfiable or unsatisfiable --
leave the relation..just tell how to do such kind pf qs.
What is the condition to get it ?? |
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G-7
Active member
| | Subject: Re: Urgent..pls help !! Thu Mar 18, 2010 11:52 pm | |
| to do the second question...if the LHS part can be simplified and say 'p' it could be a complex exp too.
and the RHS is say taken 'q'
and now by modus ponens or chain rule..
p=>q should be 1 if the WFF is valid...
and if we do the conditional elimination
p' + q shud be a tautology..[in truth table] |
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RC
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 12:18 am | |
| | can u pls d q given in the specimen.. |
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RC
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 12:20 am | |
| | G7 there ?? |
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G-7
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 12:22 am | |
| | yea.. |
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G-7
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 12:24 am | |
| | dude..i cant reach the specimen paper..! |
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WinRrule
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 10:16 am | |
| | http://www.scribd.com/doc/28594958/Specimen-Paper-CSc-Solved |
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RC
Active member
| | Subject: Re: Urgent..pls help !! Fri Mar 19, 2010 7:58 pm | |
| | good i found the first one out from wiki |
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