Validation

[mitchkeller]

Hoo, boy, do we have validation issues. Too many to fix before we ship out the 2019 edition. The big ones to resolve:

1. The ul in the summary section must be inside a p. I have fixed this sporadically. I think if we pretty print, then a global find and replace will solve the problem.
   • Can automate fix for this, I hope.
2. definition is not allowed inside a sidebyside. This is a problem for the definition of the absolute value, sine, and cosine. Temporarily wrapping the definition in p is allowing the definition to appear, but this could break at any time.
   • This is going to require manual attention and the removal of the sidebyside.
3. There are intermittent places that a sidebyside or figure is located inside a p.
   • Easy but tedious to fix. I can/will generate a list of locations it happens.
4. The idx tags for assemblage need to go after its title.
   • We might be able to automate this.
5. There are fn tags inside tabular cells. This is not allowed.
   • This probably takes some discussion. I wouldn't trust that fn inside cell is always going to work, so we will have to come up with the right solution.