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# Infinite Primes

Pro Problems > Math > Logic > Proofs > Indirect Proofs

## Infinite Primes

Use an indirect proof to show that there are infinitely many prime numbers.

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Problem by Mr. Twitchell

## Solution

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## Similar Problems

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Show that if θ is between 0º and 90º inclusive, then sin θ + cos θ ≥ 1. Use an indirect proof.

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a + b
a - b

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