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| Mirrors > Home > ILE Home > Th. List > 5re | GIF version | ||
| Description: The number 5 is real. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 5re | ⊢ 5 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 9188 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9203 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8161 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8175 | . 2 ⊢ (4 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2302 | 1 ⊢ 5 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2200 (class class class)co 6010 ℝcr 8014 1c1 8016 + caddc 8018 4c4 9179 5c5 9180 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 ax-1re 8109 ax-addrcl 8112 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 df-2 9185 df-3 9186 df-4 9187 df-5 9188 |
| This theorem is referenced by: 5cn 9206 6re 9207 6pos 9227 3lt5 9303 2lt5 9304 1lt5 9305 5lt6 9306 4lt6 9307 5lt7 9312 4lt7 9313 5lt8 9319 4lt8 9320 5lt9 9327 4lt9 9328 5lt10 9728 4lt10 9729 5recm6rec 9737 ef01bndlem 12288 vscandxnscandx 13216 slotsdifipndx 13229 slotstnscsi 13249 plendxnscandx 13262 slotsdnscsi 13277 lgsdir2lem1 15728 gausslemma2dlem4 15764 2lgslem3 15801 |
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