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Negation of 'Paris is in France and Lond...

Negation of 'Paris is in France and London is in England" is

A

Paris is in Engiand and London is in Drance

B

Paris is not in France or London is not in England

C

Parise is in England or London is in France

D

Paris is not in Fraince and London is not in England

Text Solution

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The correct Answer is:
To find the negation of the statement "Paris is in France and London is in England," we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Statements**: Let \( P \) represent the statement "Paris is in France" and \( Q \) represent the statement "London is in England." 2. **Combine the Statements**: The original statement can be expressed as \( P \land Q \) (P and Q). 3. **Apply the Negation**: The negation of \( P \land Q \) is given by De Morgan's Laws, which state that: \[ \neg (P \land Q) \equiv \neg P \lor \neg Q \] This means that the negation of "P and Q" is equivalent to "not P or not Q." 4. **Negate Each Statement**: - The negation of \( P \) (Paris is in France) is "Paris is not in France." - The negation of \( Q \) (London is in England) is "London is not in England." 5. **Combine the Negated Statements**: Using the OR operator, we can write the negation as: \[ \neg P \lor \neg Q \] In sentence form, this translates to: "Paris is not in France or London is not in England." ### Final Answer: The negation of "Paris is in France and London is in England" is: "Paris is not in France or London is not in England." ---
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Knowledge Check

  • Plaster of Paris is

    A
    `Ca SO _(4) . 2 H _(2) O`
    B
    `Ca SO _(4) . (1)/(2) H _(2)O`
    C
    `CaSO _(4) . 5 H _(2) O`
    D
    `CaSO _(4) . H _(2) O`
  • Plaster of Paris is

    A
    calcium sulphate `(CaSO_(4))`
    B
    calcium sulphate hemihydrate`(CaSO_(4).1//2H_(2)O)`
    C
    barium sulphate `(BaSO_(4))`
    D
    none of these .
  • Plaster of paris is

    A
    `CaSO_(4).(1)/(2)H_(2)O`
    B
    `CaSO_(4).2H_(2)O`
    C
    `CaSO_(4).CaCO_(3)`
    D
    `CaSO_(4).5H_(2)O`
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