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UnkleRhaukus Group Title

\[\neg[\forall x[x < 0 \Rightarrow\exists y (y^2 = x)]]\iff\exists x[x\geq0\Rightarrow\forall y(y^2\neq x)]\]

  • 2 years ago
  • 2 years ago

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  1. UnkleRhaukus Group Title
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    am i right/

    • 2 years ago
  2. UnkleRhaukus Group Title
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    no wait , i see error

    • 2 years ago
  3. UnkleRhaukus Group Title
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    the negation of an implication

    • 2 years ago
  4. helder_edwin Group Title
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    the negation of \(\to\) is \(\wedge\)

    • 2 years ago
  5. UnkleRhaukus Group Title
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    yeah

    • 2 years ago
  6. helder_edwin Group Title
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    \[ \large \neg(p\to q)\equiv p\wedge\neg q \]

    • 2 years ago
  7. UnkleRhaukus Group Title
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    \[\exists x[x<0\wedge\forall y(y^2\neq x)]\]

    • 2 years ago
  8. swissgirl Group Title
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    Ya that makes more sense

    • 2 years ago
  9. swissgirl Group Title
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    hmmm you edited your question but its still incorrect

    • 2 years ago
  10. UnkleRhaukus Group Title
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    \[\neg\left[\forall x[x < 0 \Rightarrow\exists y (y^2 = x)]\right]\iff\exists x\left[x<0\land\forall y(y^2\neq x)\right]\]

    • 2 years ago
  11. swissgirl Group Title
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    Yes thats the answer

    • 2 years ago
  12. UnkleRhaukus Group Title
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    thanks to you both

    • 2 years ago
  13. swissgirl Group Title
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    not that I helped :P

    • 2 years ago
  14. helder_edwin Group Title
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    u r welcome

    • 2 years ago
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