# Org-Mode - Fix LaTex export

I've written a document in Org-mode but when exported it became like this:

1. In the image on top, I've inserted a \bullet but it wont show and the text is not alligned:
2. And in the image on bottom, the text is not aligned as body text, but as a list:

This is the code for the first image:

To calculate the probability its necessary to calculate the probability of C given positive test
- P(C | Positive) = P(C) \bullet P(Positive | C)
- P(\urcorner C | Positive) = P(\urcorner C) \bullet P(Positive | -C)


and for the second:

******* Summary

It is important to always test the data after the fitting to measure the accuracy of the predictions made by the program. At least 10% of the data should be saved to test. When telling anyone the result of the predictions, tell about the accuracy of the test data.

• Regarding the second issue, your level heading is too deep. Unless you have an export option like H:7, and the export class has the appropriate definition, it will probably be interpreted as a list. – suvayu Sep 25 '17 at 10:54
• @suvayu, you're right, when I try to export just the subtree, it works as intended – Vasco Ferreira Sep 25 '17 at 14:28
• @suvayu Indeed. Interestingly enough, if you don't use upper level headings (I just pasted OP code) this is processed as a top level heading. – JeanPierre Sep 25 '17 at 14:59
• @VascoFerreira If you post the 2nd part as a separate question (as it should be, according to SX guidelines), I could try to give a more comprehensive response. – suvayu Oct 1 '17 at 7:14

For the first problem, you need to add $ around the \urcorners, apparently it can only appears in latex math mode. Generally speaking, a good way to solve such problems is to export to latex instead of pdf, then compile the latex file (simply use C-c C-c if auctex is installed), and examine errors if any. Of course knowing a bit about latex is recommended then. The second part displays ok for me with the source you provided. • Also, you may want to use \neg rather than \urcorner. – JeanPierre Sep 24 '17 at 21:41 • If i export just the subtree it works as intended for the second problem. For the first, $ does work, and if I also write it also works. – Vasco Ferreira Sep 24 '17 at 22:31