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Definition df-b3 56
Description: Defined biconditional.
Assertion
Ref Expression
df-b3 (a <->3 b) = ((a ->3 b) ^ (b ->3 a))
Detailed syntax breakdown of Definition df-b3
StepHypRef Expression
1 wva . . 3 term a
2 wvb . . 3 term b
31, 2wb3 23 . 2 term (a <->3 b)
41, 2wi3 14 . . 3 term (a ->3 b)
52, 1wi3 14 . . 3 term (b ->3 a)
64, 5wa 7 . 2 term ((a ->3 b) ^ (b ->3 a))
73, 6wb 1 1 wff (a <->3 b) = ((a ->3 b) ^ (b ->3 a))
Colors of variables: term
This definition is referenced by: (None)
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