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Mirrors > Home > MPE Home > Th. List > df-fzo | Structured version Visualization version Unicode version |
Description: Define a function generating sets of integers using a half-open range. Read ..^ as the integers from up to, but not including, ; contrast with df-fz 12327, which includes . Not including the endpoint simplifies a number of formulae related to cardinality and splitting; contrast fzosplit 12501 with fzsplit 12367, for instance. (Contributed by Stefan O'Rear, 14-Aug-2015.) |
Ref | Expression |
---|---|
df-fzo | ..^ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cfzo 12465 | . 2 ..^ | |
2 | vm | . . 3 | |
3 | vn | . . 3 | |
4 | cz 11377 | . . 3 | |
5 | 2 | cv 1482 | . . . 4 |
6 | 3 | cv 1482 | . . . . 5 |
7 | c1 9937 | . . . . 5 | |
8 | cmin 10266 | . . . . 5 | |
9 | 6, 7, 8 | co 6650 | . . . 4 |
10 | cfz 12326 | . . . 4 | |
11 | 5, 9, 10 | co 6650 | . . 3 |
12 | 2, 3, 4, 4, 11 | cmpt2 6652 | . 2 |
13 | 1, 12 | wceq 1483 | 1 ..^ |
Colors of variables: wff setvar class |
This definition is referenced by: fzof 12467 fzoval 12471 |
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