4.8.1 | |||
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This is interpreted that every value of is one of the values of , and vice versa.
4.8.2 | |||
, | |||
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4.8.3 | |||
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4.8.4 | |||
. | |||
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In (4.8.5)–(4.8.7) and (4.8.10) .
4.8.5 | |||
, | |||
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4.8.6 | |||
, , | |||
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4.8.7 | |||
. | |||
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4.8.8 | |||
, | |||
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4.8.9 | |||
, | |||
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4.8.10 | |||
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If and has its general value, then
4.8.11 | |||
. | |||
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If and has its principal value, then
4.8.12 | |||
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where the integer is chosen so that .
4.8.13 | |||
. | |||
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The restriction on can be removed when is an integer.