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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-range | Structured version Visualization version GIF version |
Description: Define the range function. See brrange 34163 for its value. (Contributed by Scott Fenton, 11-Apr-2014.) |
Ref | Expression |
---|---|
df-range | ⊢ Range = Image(2nd ↾ (V × V)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | crange 34073 | . 2 class Range | |
2 | c2nd 7803 | . . . 4 class 2nd | |
3 | cvv 3422 | . . . . 5 class V | |
4 | 3, 3 | cxp 5578 | . . . 4 class (V × V) |
5 | 2, 4 | cres 5582 | . . 3 class (2nd ↾ (V × V)) |
6 | 5 | cimage 34069 | . 2 class Image(2nd ↾ (V × V)) |
7 | 1, 6 | wceq 1539 | 1 wff Range = Image(2nd ↾ (V × V)) |
Colors of variables: wff setvar class |
This definition is referenced by: brrange 34163 |
Copyright terms: Public domain | W3C validator |