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Theorem adco 174
Description: Plus is commutative.
Hypothesis
Ref Expression
adco.1 (𝜑 ⅋ (𝜓𝜒))
Assertion
Ref Expression
adco (𝜑 ⅋ (𝜒𝜓))

Proof of Theorem adco
StepHypRef Expression
Colors of variables: wff var nilad
Syntax hints:  wmd 2  wad 131
 WARNING: This theorem has an incomplete proof.
This theorem is referenced by: (None)
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