I'm resuming a project after some weeks.

Now, when I reference some theorem, the result are that bored question marks (??). For theorems that already exists, refence to that works well, but referencing other theorems doesn't.

It's weird. Before all was fine.

For example:






and the result is

Theorem ??

Any trick?

  • 1
    What packages are you using? Should your theorem definition say \begin{theorem}\label{def:conv_method_1} instead of \begin{def:conv_method_1}? Jul 18, 2014 at 20:43
  • @JohnPalmieri I suggest you post that as an answer in its own right so it can be accepted.
    – swref
    Jul 18, 2014 at 21:10

1 Answer 1


I think your theorem definition should say \begin{theorem}\label{def:conv_method_1} ... instead of \begin{def:conv_method_1} ....

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