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Step * of Lemma atom_subtype_base

Atom ⊆r Base
BY
{ (D 0 THEN Auto) }

1
.....subterm..... T:t
1:n
1. x : Atom@i
⊢ x ∈ Base

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Latex:

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Latex:
Atom  \msubseteq{}r  Base


By

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Latex:
(D  0  THEN  Auto)

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