# Recent posts in 2021

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## [Index]

Resources: I used for GATE Study tips Test Series Recommended preparation blogs/ videos FAQs

# 1. Resources

### Digital Logic

Book: Digital Design by Morris Mano [5th ed] Chapter 1 to 6 along with some questions from exercises

PAL and PLA : Neso Academy

Floating point representation: Article by Steve Hollasch

### Computer...

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(&forall;x&forall;yP(x,y))&rarr;(&forall;x&forall;yP(y,x)) Here the LHS will be true only if P(x,y) is true for every possible x and y. Since both x and y are coming from the same universe, if this is true, then their order doesn't matter for P(x, y).
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2 Tuples for verification purposes : SQL_Fiddle
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k :)
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plz correct me if wrong!! P(x) : perfect F(x) :friends (a)&#8765;&exist;x(P(x)) (b)&#8765;&forall;x(P(x)) (c)&forall;x(F(x)------>P(x)) (d) i am thinking in this way ALL FRIENDS ARE PERFECT - NO FRIEND IS PERFECT how to write above sentence...?? in logic
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its 3. draw a graph and colour it and check
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