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	- American mathematician (en)
 
	- matemático estadounidense (es)
 
	- matematician american (ro)
 
	- Ameerika Ühendriikide matemaatik (et)
 
	- matematikan amerikan (sq)
 
	- matemàtic estatunidenc (ca)
 
	- matemático estadounidense (gl)
 
	- mathématicien américain (fr)
 
	- מתמטיקאי אמריקאי (iw)
 
	- رياضياتي أمريكي (ar)
 
	- মার্কিন গণিতবিদ (bn)
 
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	- Headshot of Michael Hartl wearing a blue collared shirt (en)
 
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	- Physicist, entrepreneur, writer (en)
 
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