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How can bibliographic entries be added? I need these:
[Sanford]
If P, then Q: Conditionals and the Foundations of Reasoning
David H. Sanford
Second edition, 2003.
https://books.google.com/books?id=h…
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I suggest adding Stoic logic, which is about 2000 years old, from the "Stoic logic indemonstrables (Chyrysippus of Soli)" section in my mathbox. The more obvious place to put it is the "Other axioma…
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Please add double struck letters. E.g. Unicode hex 2102 (decimal 8450) is double struck capital C. This is often used to represent complex numbers, for example in http://us.metamath.org/mpeuni/2p2e4.…
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```
At the list branch of https://github.com/jkingdon/ghilbert.git
(which can be browsed at https://github.com/jkingdon/ghilbert/tree/list )
there are changes to:
1. Show the hypotheses and conclus…
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metamath is throwing this error on set.mm:
?Error: The token "2Ideal", which was defined in a $v or $c statement, was not
declared in an htmldef statement.
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```
At the list branch of https://github.com/jkingdon/ghilbert.git
(which can be browsed at https://github.com/jkingdon/ghilbert/tree/list )
there are changes to:
1. Show the hypotheses and conclus…