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Theorem adm1s 175
Description: Plus is monotone in its first argument.
Hypothesis
Ref Expression
adm1s.1 ⊦ (𝜑 ⊸ 𝜒)
Assertion
Ref Expression
adm1s ⊦ ((𝜑 ⊕ 𝜓) ⊸ (𝜒 ⊕ 𝜓))

Proof of Theorem adm1s
StepHypRef Expression
Colors of variables: wff var nilad
Syntax hints:   ⊸ wli 61   ⊕ wad 131
 WARNING: This theorem has an incomplete proof.
This theorem is referenced by: (None)
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