Bourbaki and zero
I had a memory that the Bourbaki school proposed that $0$ be considered both positive and negative rather than neither. I cannot find any confirmation of this. Can someone point me to one or am I dreaming?
Nicolas Bourbaki (Wikipedia)
elementary-number-theory terminology
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
add a comment |
I had a memory that the Bourbaki school proposed that $0$ be considered both positive and negative rather than neither. I cannot find any confirmation of this. Can someone point me to one or am I dreaming?
Nicolas Bourbaki (Wikipedia)
elementary-number-theory terminology
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
add a comment |
I had a memory that the Bourbaki school proposed that $0$ be considered both positive and negative rather than neither. I cannot find any confirmation of this. Can someone point me to one or am I dreaming?
Nicolas Bourbaki (Wikipedia)
elementary-number-theory terminology
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
I had a memory that the Bourbaki school proposed that $0$ be considered both positive and negative rather than neither. I cannot find any confirmation of this. Can someone point me to one or am I dreaming?
Nicolas Bourbaki (Wikipedia)
elementary-number-theory terminology
elementary-number-theory terminology
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
edited Dec 1 at 10:10
Mauro ALLEGRANZA
64.2k448111
64.2k448111
asked Dec 1 at 9:38
badjohn
4,2221620
asked Dec 1 at 9:38
badjohn
4,2221620
asked Dec 1 at 9:38
badjohn
4,2221620
4,2221620
add a comment |
add a comment |
1 Answer
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See André Weil, Number Theory for Beginners (1979) page 2 :
A rational number is positive ($ge 0$) or negative ($le 0$); only $0$ is both.
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
add a comment |
Your Answer
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1 Answer
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1 Answer
1
active
oldest
votes
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active
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votes
See André Weil, Number Theory for Beginners (1979) page 2 :
A rational number is positive ($ge 0$) or negative ($le 0$); only $0$ is both.
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
add a comment |
See André Weil, Number Theory for Beginners (1979) page 2 :
A rational number is positive ($ge 0$) or negative ($le 0$); only $0$ is both.
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
add a comment |
See André Weil, Number Theory for Beginners (1979) page 2 :
A rational number is positive ($ge 0$) or negative ($le 0$); only $0$ is both.
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
See André Weil, Number Theory for Beginners (1979) page 2 :
A rational number is positive ($ge 0$) or negative ($le 0$); only $0$ is both.
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
answered Dec 1 at 10:09
Mauro ALLEGRANZA
64.2k448111
64.2k448111
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
add a comment |
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
Thank you. I don't normally accept answers immediately but it is hard to see that a better one will come along.
– badjohn
Dec 1 at 10:16
add a comment |
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