Description: Substitution for a six-place predicate. (Contributed by Scott Fenton, 4-Oct-2013) (Revised by Mario Carneiro, 3-May-2015)
Ref | Expression | ||
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Hypotheses | br6.1 | |
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br6.2 | |
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br6.3 | |
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br6.4 | |
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br6.5 | |
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br6.6 | |
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br6.7 | |
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br6.8 | |
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Assertion | br6 | |