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Theorem lbtrimd 201
Description: Linear biconditional is transitive. Intuitionistic deduction for lbtr 128.
Hypotheses
Ref Expression
lbtrimd.1 (𝜑 → (𝜓𝜒))
lbtrimd.2 (𝜑 → (𝜒𝜃))
Assertion
Ref Expression
lbtrimd (𝜑 → (𝜓𝜃))

Proof of Theorem lbtrimd
StepHypRef Expression
Colors of variables: wff var nilad
Syntax hints:  wlb 55  wim 180
 WARNING: This theorem has an incomplete proof.
This theorem is referenced by: (None)
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