Examlex
Identify the property illustrated by the statement. Assume all variables represent real numbers.
- , if
Piano
A musical instrument with keys that, when pressed, operate hammers that strike wires to produce sound.
Necessary Condition
A condition that must be present for an event or entity to occur or exist; without it, the event or entity cannot occur or exist.
Sheet Music
Written notation that represents musical compositions through symbols, including notes and rhythms, intended for performance.
Square
A four-sided polygon with all sides of equal length and angles that are right angles, also represents equality in various contexts.
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