| 1 | const realField = {
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| 2 | zero: 0,
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| 3 | one: 1,
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| 4 | // NaN, Infinity and -Infinity are not allowed.
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| 5 | contains: (a) => (typeof a === 'number' && isFinite(a)),
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| 6 | equality: (a, b) => a === b,
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| 7 | addition: (a, b) => a + b,
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| 8 | negation: (a) => -a,
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| 9 | multiplication: (a, b) => a * b,
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| 10 | inversion: (a) => 1 / a
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| 11 | }
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| 12 |
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| 13 | module.exports = realField
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