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Theorem eqtrd 256
Description: Equality is transitive. Deduction for eqtr 250.
Hypotheses
Ref Expression
eqtrd.1 (𝜑X = Y)
eqtrd.2 (𝜑Y = Z)
Assertion
Ref Expression
eqtrd (𝜑X = Z)

Proof of Theorem eqtrd
StepHypRef Expression
Colors of variables: wff var nilad
Syntax hints:  wli 61   = weq 246
 WARNING: This theorem has an incomplete proof.
This theorem is referenced by: (None)
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