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Mirrors > Home > ILE Home > Th. List > df-base | Unicode version |
Description: Define the base set (also called underlying set, ground set, carrier set, or carrier) extractor for extensible structures. (Contributed by NM, 4-Sep-2011.) (Revised by Mario Carneiro, 14-Aug-2015.) |
Ref | Expression |
---|---|
df-base |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cbs 12515 |
. 2
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2 | c1 7843 |
. . 3
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3 | 2 | cslot 12514 |
. 2
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4 | 1, 3 | wceq 1364 |
1
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Colors of variables: wff set class |
This definition is referenced by: base0 12565 baseval 12568 baseid 12569 basendx 12570 basendxnn 12571 basendxnplusgndx 12639 basendxnmulrndx 12648 |
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