The Noun project has icons for very diverse topics, so it may be helpful in general. Their science and math categoryhttp://thenounproject.com/categories/science-math/does seem not to cover the specific concepts you mention, but some of the available ones may be useful as inspiration.
Pau
On Thu, May 30, 2013 at 2:52 PM, Mathieu Stumpf < psychoslave@culture-libre.org> wrote:
Hello,
Seeking for icons to reprent things like "axioms", "theorems" and so on for the french wikiversity, I found the "Project Nuvola 2.0+"[1], despite it seems that there's currently not much activity on it, I began to put new proposals on the page. I think I red some messages on this list about this topic. Is there some active projects I should look at?
By the way, if you have ideas to illustrate the following concepts, let me know: Axiom Corollary Definition Example Lemma Principle Proof Property Suggestion Theorem
You may look at [2] to see my current proposals for some of them.
[1] https://commons.wikimedia.org/**wiki/Commons:Project_Nuvola_2.**0%2Bhttps://commons.wikimedia.org/wiki/Commons:Project_Nuvola_2.0%2B [2] https://fr.wikiversity.org/**wiki/Mod%C3%A8le:Emphasehttps://fr.wikiversity.org/wiki/Mod%C3%A8le:Emphase
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