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Mirrors > Home > HSE Home > Th. List > df-at | Structured version Visualization version Unicode version |
Description: Define the set of atoms in a Hilbert lattice. An atom is a nonzero element of a lattice such that anything less than it is zero, i.e. it is the smallest nonzero element of the lattice. Definition of atom in [Kalmbach] p. 15. See ela 29198 and elat2 29199 for membership relations. (Contributed by NM, 14-Aug-2002.) (New usage is discouraged.) |
Ref | Expression |
---|---|
df-at | HAtoms |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cat 27822 | . 2 HAtoms | |
2 | c0h 27792 | . . . 4 | |
3 | vx | . . . . 5 | |
4 | 3 | cv 1482 | . . . 4 |
5 | ccv 27821 | . . . 4 | |
6 | 2, 4, 5 | wbr 4653 | . . 3 |
7 | cch 27786 | . . 3 | |
8 | 6, 3, 7 | crab 2916 | . 2 |
9 | 1, 8 | wceq 1483 | 1 HAtoms |
Colors of variables: wff setvar class |
This definition is referenced by: ela 29198 atssch 29202 |
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