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| Mirrors > Home > MPE Home > Th. List > Mathboxes > df-lb | Structured version Visualization version Unicode version | ||
| Description: Define the lower bound relationship functor. See brlb 32062 for value. (Contributed by Scott Fenton, 3-May-2018.) |
| Ref | Expression |
|---|---|
| df-lb |
 LB  UB |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cR |
. . 3
 | |
| 2 | 1 | clb 31960 |
. 2
LB |
| 3 | 1 | ccnv 5113 |
. . 3
|
| 4 | 3 | cub 31959 |
. 2
UB |
| 5 | 2, 4 | wceq 1483 |
1
 LB UB |
| Colors of variables: wff setvar class |
| This definition is referenced by: brlb 32062 |
| Copyright terms: Public domain | W3C validator |