argon_electrons
plain-language theorem explainer
Argon electron count is fixed at 18 as the third entry in the noble gas list. Atomic structure modelers in Recognition Science cite this to anchor shell-filling calculations for the periodic table. The proof is a direct reflexivity reduction on the explicit list definition.
Claim. The third noble-gas electron count satisfies $N_3 = 18$.
background
The QFT.PauliExclusion module derives the Pauli exclusion principle from ledger single-occupancy: fermions carry an odd phase through the 8-tick cycle, forcing antisymmetry and zero amplitude for two identical entries at the same address. The upstream definition nobleGasElectrons supplies the cumulative shell totals [2, 10, 18, 36, 54, 86] that encode the 2n² filling pattern. This theorem simply confirms the argon position in that sequence.
proof idea
One-line wrapper that applies reflexivity (rfl) to the list definition of nobleGasElectrons.
why it matters
The result anchors the explicit noble-gas counts that support the module's target derivation of atomic shell structure from ledger constraints. It sits inside the broader Pauli-exclusion development that links odd-phase fermions to single occupancy and thereby to the periodic table. No downstream uses are recorded yet; the declaration closes a concrete data point in the shell-filling chain.
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