Natural language into sentence logic The Next CEO of Stack OverflowIs an argument in natural...
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Natural language into sentence logic
The Next CEO of Stack OverflowIs an argument in natural language as logically valid as in formal logic?Questions about the relationship between Wittgenstein's Philosophical Investigations and TractatusWhere Wittgenstein argues that thinking is done in natural language?
Need some help putting these two examples of natural language into sentence logic. For reference, use the transcription guide below:
D = you think so; E = I think so; F = it is true
If you think so, I think so. And if I think so, you think so. (is it possible to express this using just one connective?)
Unless it isn’t true, you don’t think so.
natural-language
add a comment |
Need some help putting these two examples of natural language into sentence logic. For reference, use the transcription guide below:
D = you think so; E = I think so; F = it is true
If you think so, I think so. And if I think so, you think so. (is it possible to express this using just one connective?)
Unless it isn’t true, you don’t think so.
natural-language
add a comment |
Need some help putting these two examples of natural language into sentence logic. For reference, use the transcription guide below:
D = you think so; E = I think so; F = it is true
If you think so, I think so. And if I think so, you think so. (is it possible to express this using just one connective?)
Unless it isn’t true, you don’t think so.
natural-language
Need some help putting these two examples of natural language into sentence logic. For reference, use the transcription guide below:
D = you think so; E = I think so; F = it is true
If you think so, I think so. And if I think so, you think so. (is it possible to express this using just one connective?)
Unless it isn’t true, you don’t think so.
natural-language
natural-language
asked 3 hours ago
A. DelargeA. Delarge
513
513
add a comment |
add a comment |
1 Answer
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- This sentence is a conjunction of two conditionals:
D→E∧E→D
You can put it into a single connective by using CB: D↔E
- I was taught that "unless" is a flag for the "or" connective, so I will write my answer like that. If you rewrite the sentence to "You don’t think so unless it isn’t true", then the logic you get is:
~F∨~D
New contributor
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
- This sentence is a conjunction of two conditionals:
D→E∧E→D
You can put it into a single connective by using CB: D↔E
- I was taught that "unless" is a flag for the "or" connective, so I will write my answer like that. If you rewrite the sentence to "You don’t think so unless it isn’t true", then the logic you get is:
~F∨~D
New contributor
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
add a comment |
- This sentence is a conjunction of two conditionals:
D→E∧E→D
You can put it into a single connective by using CB: D↔E
- I was taught that "unless" is a flag for the "or" connective, so I will write my answer like that. If you rewrite the sentence to "You don’t think so unless it isn’t true", then the logic you get is:
~F∨~D
New contributor
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
add a comment |
- This sentence is a conjunction of two conditionals:
D→E∧E→D
You can put it into a single connective by using CB: D↔E
- I was taught that "unless" is a flag for the "or" connective, so I will write my answer like that. If you rewrite the sentence to "You don’t think so unless it isn’t true", then the logic you get is:
~F∨~D
New contributor
- This sentence is a conjunction of two conditionals:
D→E∧E→D
You can put it into a single connective by using CB: D↔E
- I was taught that "unless" is a flag for the "or" connective, so I will write my answer like that. If you rewrite the sentence to "You don’t think so unless it isn’t true", then the logic you get is:
~F∨~D
New contributor
New contributor
answered 2 hours ago
cenicerocenicero
311
311
New contributor
New contributor
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
add a comment |
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Thank you so much for your response. For #2, however, I was recently taught that “X, unless Y” is the same (usually) as ~Y > X. Would it be possible to write it out then as ~~D > ~F, which would just be D > ~F?
– A. Delarge
1 hour ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
Hello, if you were taught that "X unless Y" meant X ∨ ~Y, then "You don’t think so unless it isn’t true" would be "You don’t think so" ∨ ~"it isn’t true" = ~D ∨ ~~F = ~D ∨ F
– cenicero
7 mins ago
add a comment |
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