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| Mirrors > Home > ILE Home > Th. List > 6re | GIF version | ||
| Description: The number 6 is real. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 6re | ⊢ 6 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-6 9376 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5re 9392 | . . 3 ⊢ 5 ∈ ℝ | |
| 3 | 1re 8331 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8345 | . 2 ⊢ (5 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2311 | 1 ⊢ 6 ∈ ℝ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 (class class class)co 6088 ℝcr 8184 1c1 8186 + caddc 8188 5c5 9367 6c6 9368 |
| 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 |
| This theorem is used by: 6cn 9395 7re 9396 7pos 9415 4lt6 9496 3lt6 9497 2lt6 9498 1lt6 9499 6lt7 9500 5lt7 9501 6lt8 9507 5lt8 9508 6lt9 9515 5lt9 9516 8th4div3 9535 halfpm6th 9536 div4p1lem1div2 9570 6lt10 9926 5lt10 9927 5recm6rec 9936 efi4p 12509 resin4p 12510 recos4p 12511 ef01bndlem 12548 sin01bnd 12549 cos01bnd 12550 slotsdifipndx 13588 slotstnscsi 13608 plendxnvscandx 13622 slotsdnscsi 13636 sincos6thpi 16069 pigt3 16071 ppiublem1 16291 ppiublem2 16292 ppiqub 16293 chtqub 16296 bposlem6 16316 bposlem8 16318 |
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