Efficiency is Less than 100 per cent

Theorem

Let $S$ be a system.

The efficiency of $S$ is strictly less than $100 \%$.

Proof

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Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): efficiency: 3.
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): efficiency: 3.