Delete page.en.md

01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/04.fermat-principle/06.fermat-principle-level-down/page.en.md

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-title: 'course : level-1'
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-
-course : level-1 
-- or level+1 if current level = 1
-- or level-2  if current level = 4
-
-#####for parallel or other level course :
-It will be possible to redirect towards an other page in the m3p2 cursus.
-Or to write here some paragraphes separated by html from an other pages, I think.
-Or write here a completely new parallel course
-
-For the moment, please wait.
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