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Theorem inj-add

⊦ a + x = a0 + x0 ↔ a = a0 ∧ x = x0

Type: A proof obligation
Validity: The proof is valid.
Features:
Comment: |- a + x = a0 + x0 <-> a = a0 and x = x0
Used by:
Used by units in proved state:
Proof exists?: Yes

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Infos about the proof