Last modified: 2010-04-03 15:41:22 UTC
Sometimes, <math>\varphi</math> is displayed as "\varphi", not as the greek letter. See http://en.wikipedia.org/wiki/Talk:Robinson%27s_joint_consistency_theorem
The page given no-longer seems broken.
The issue is very dependent on the fonts you have installed. It's actually a dupe of 1347 *** This bug has been marked as a duplicate of bug 1347 ***
The description implied that it was "\varphi" no "ϕ" or "φ" at all. Still the dup status does no harm.
Hmm, you are right. Perhaps the image could not be loaded for some reason, and the user was seeing the "alt" instead ?