Those accomplishments stand as concrete proof to your academic prowess and ability to learn at a higher level.

FORBES: Suzy Lee Weiss and the Age of Entitlement

Some courses require proof of experience (often via demonstrated ability or via confirmation from another course).

BBC: Playing golf around the world

Most emerging markets see their ability to attract foreign money as proof of good management.

ECONOMIST: Economics focus

"Our long and successful track record of licensing more than 50 companies throughout the mobile industry is proof of that commitment, and of our ability to reach mutually agreeable terms for such licenses, " Lawrence Shay, President of InterDigital's patent holding subsidiaries said in a statement.

BBC: Huawei MediaPad