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Step 1: Customer Discovery The goal ofCustomer Discovery is just what the name implies: finding out who the customers for your product are and whether the problem you believe you are solving is important to them. More formally, this step involves discovering whether the problem, product and customer hypotheses in your business plan are correct.

The Four Steps to the Epiphany Success

Steven Gary Blank

The main difference between integrability in the sense of Lebesgue and Riemann is the way we measure 'the area under the curve'. The Riemann integral asks the question what's the 'height' of 𝑓f above a given part of the domain of the function. The Lebesgue integral on the other hand asks, for a given part of the range of 𝑓f, what's the measure of the 𝑥x's which contribute to this 'height'.

Integration - ELI5: Riemann-Integrable vs Lebesgue-Integrable - Mathematics Stack Exchange

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You need rich people in your society not so much because in spending their money they create jobs, but because of what they have to do to get rich. I’m not talking about the trickle-down effect here. I’m not saying that if you let Henry Ford get rich, he’ll hire you as a waiter at his next party. I’m saying that he’ll make you a tractor to replace your horse.

Hackers & Painters - Big Ideas From the Computer Age

Paul Graham

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