(September 8, 2015 at 9:44 pm)Alex K Wrote:(September 8, 2015 at 8:52 pm)Knight000 Wrote: Something I cooked up to test your logical thinking skills. Ask any question you feel you need to pertaining to the question.I read "one of us" as "exactly one of us". The wording is ambiguous.
Two brothers walk up to you.
Man 1 says "One of us tells lies"
Man 2 says "And one of us tells the truth".
Man one states an undeniable fact.
Which one lies, and which one tells the truth?
Determine all of what you know, don't think one has to tell lies and one has to tell the truth.
Hypothesis TT contradicts the first statement, the hypothesis is rejected
TL is compatible with the first statement, but not with negation of statement 2 (none or two of us tell the truth). Therefore the hypothesis is rejected.
LT is compatible with statement 2, but not with the negation of statement 1 (none or two of us tell lies)
LL is compatible with the negation of statement 1 (none or two of us tell lies) and with the negation of statement 2 (none or two of us tell the truth).
Both are liars therefore is the only consistent constellation.
Liar!
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