Mixing
Doubt on Implication of Logical reasoning [duplicate]
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This question already has an answer here:
In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?
14 answers
In classical logic, why is $(pRightarrow q)$ True if both $p$ and $q$ are False?
21 answers
Its evident that in the truth table of $p to q$
When $p$ is False and $q$ is True, Then $p to q$ is True.
But in some instances i could not convince myself about this truth value.
For example:
$p$: Quadrilateral is Cyclic
$q$: Opposite angles are supplementary
Now is $p$ is False and $q$ is True, how can $p to q$ can be True?
logic
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
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marked as duplicate by spaceisdarkgreen, Tanner Swett, Derek Elkins, Lord Shark the Unknown, Mauro ALLEGRANZA logic
Users with the logic badge can single-handedly close logic questions as duplicates and reopen them as needed.
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Jan 22 at 7:17
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
$begingroup$
This question already has an answer here:
In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?
14 answers
In classical logic, why is $(pRightarrow q)$ True if both $p$ and $q$ are False?
21 answers
Its evident that in the truth table of $p to q$
When $p$ is False and $q$ is True, Then $p to q$ is True.
But in some instances i could not convince myself about this truth value.
For example:
$p$: Quadrilateral is Cyclic
$q$: Opposite angles are supplementary
Now is $p$ is False and $q$ is True, how can $p to q$ can be True?
logic
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
$endgroup$
marked as duplicate by spaceisdarkgreen, Tanner Swett, Derek Elkins, Lord Shark the Unknown, Mauro ALLEGRANZA logic
Users with the logic badge can single-handedly close logic questions as duplicates and reopen them as needed.
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Jan 22 at 7:17
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
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Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
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– spaceisdarkgreen
Jan 22 at 4:37
2
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I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
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– Tanner Swett
Jan 22 at 4:54
add a comment |
$begingroup$
This question already has an answer here:
In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?
14 answers
In classical logic, why is $(pRightarrow q)$ True if both $p$ and $q$ are False?
21 answers
Its evident that in the truth table of $p to q$
When $p$ is False and $q$ is True, Then $p to q$ is True.
But in some instances i could not convince myself about this truth value.
For example:
$p$: Quadrilateral is Cyclic
$q$: Opposite angles are supplementary
Now is $p$ is False and $q$ is True, how can $p to q$ can be True?
logic
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
$endgroup$
This question already has an answer here:
In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?
14 answers
In classical logic, why is $(pRightarrow q)$ True if both $p$ and $q$ are False?
21 answers
Its evident that in the truth table of $p to q$
When $p$ is False and $q$ is True, Then $p to q$ is True.
But in some instances i could not convince myself about this truth value.
For example:
$p$: Quadrilateral is Cyclic
$q$: Opposite angles are supplementary
Now is $p$ is False and $q$ is True, how can $p to q$ can be True?
This question already has an answer here:
In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?
14 answers
In classical logic, why is $(pRightarrow q)$ True if both $p$ and $q$ are False?
21 answers
logic
logic
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
asked Jan 22 at 4:24
Umesh shankarUmesh shankar
2,97531220
2,97531220
marked as duplicate by spaceisdarkgreen, Tanner Swett, Derek Elkins, Lord Shark the Unknown, Mauro ALLEGRANZA logic
Users with the logic badge can single-handedly close logic questions as duplicates and reopen them as needed.
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Jan 22 at 7:17
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by spaceisdarkgreen, Tanner Swett, Derek Elkins, Lord Shark the Unknown, Mauro ALLEGRANZA logic
Users with the logic badge can single-handedly close logic questions as duplicates and reopen them as needed.
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Jan 22 at 7:17
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
$begingroup$
Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
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– spaceisdarkgreen
Jan 22 at 4:37
2
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I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
$endgroup$
– Tanner Swett
Jan 22 at 4:54
add a comment |
$begingroup$
Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
$endgroup$
– spaceisdarkgreen
Jan 22 at 4:37
2
$begingroup$
I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
$endgroup$
– Tanner Swett
Jan 22 at 4:54
$begingroup$
Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
$endgroup$
– spaceisdarkgreen
Jan 22 at 4:37
$begingroup$
Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
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– spaceisdarkgreen
Jan 22 at 4:37
2
2
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I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
$endgroup$
– Tanner Swett
Jan 22 at 4:54
$begingroup$
I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
$endgroup$
– Tanner Swett
Jan 22 at 4:54
add a comment |
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$begingroup$
Also math.stackexchange.com/questions/53777/… math.stackexchange.com/questions/616295/… math.stackexchange.com/questions/168282/…
$endgroup$
– spaceisdarkgreen
Jan 22 at 4:37
2
$begingroup$
I've marked this as a possible duplicate of "In classical logic, why is $(pRightarrow q)$ True if $p$ is False and $q$ is True?"
$endgroup$
– Tanner Swett
Jan 22 at 4:54