Recent content by wdulli

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    Proving Logic Statements with Truth Tables and Laws

    Homework Statement Sometimes i got a question with homework if i can prove something. I got a book where the tolled me to use truthtables to see the outcome : For example : (notP V Q) <=> (P => Q) P Q | notP | notP v Q | P=>Q | (notP V Q) <=> (P => Q) 0 0 | 1 | 1...
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    Counting Elements in a Set: {1,2,{3},{4,5},6,{{7}8}}

    Yes sorry that was a typo and thanks for your answer, but can you explain me the rules (Because now I'm even more confused expecially that 7 isn't a own set in this set. (Correction element in this set)
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    Counting Elements in a Set: {1,2,{3},{4,5},6,{{7}8}}

    Homework Statement How many elements are in the set below? {1,2,{3},{4,5},6,{{7}8}} Homework Equations The Attempt at a Solution I heared that the best way is to take of the {} each time. But can somebody tell me the real rules for how to find solutions for this question...