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formal statement (Lean)
121theorem iodine_is_halogen : isHalogen 53 := by native_decide
proof body
Term-mode proof.
122
123/-- Astatine (Z=85) is a halogen. -/
depends on (8)
Lean names referenced from this declaration's body.
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isHalogen
in IndisputableMonolith.Chemistry.ElectronAffinity
decl_use
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isHalogen
in IndisputableMonolith.Chemistry.IonicBond
decl_use
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is
in IndisputableMonolith.Foundation.OptionAEmpiricalProgram
decl_use
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is
in IndisputableMonolith.Foundation.SimplicialLedger.EdgeLengthFromPsi
decl_use
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is
in IndisputableMonolith.GameTheory.MechanismDesignFromSigma
decl_use
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Z
in IndisputableMonolith.Masses.Anchor
decl_use
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is
in IndisputableMonolith.Mathematics.RamanujanBridge.MockThetaPhantom
decl_use
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Z
in IndisputableMonolith.Physics.AnchorPolicyCertified
decl_use