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| Mirrors > Home > ILE Home > Th. List > 7re | Unicode version | ||
| Description: The number 7 is real. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 7re |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-7 9377 |
. 2
| |
| 2 | 6re 9394 |
. . 3
| |
| 3 | 1re 8331 |
. . 3
| |
| 4 | 2, 3 | readdcli 8345 |
. 2
|
| 5 | 1, 4 | eqeltri 2311 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1re 8279 ax-addrcl 8282 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 df-2 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-7 9377 |
| This theorem is used by: 7cn 9397 8re 9398 8pos 9416 5lt7 9501 4lt7 9502 3lt7 9503 2lt7 9504 1lt7 9505 7lt8 9506 6lt8 9507 7lt9 9514 6lt9 9515 7lt10 9925 6lt10 9926 bposlem8 16318 lgsdir2lem1 16352 |
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