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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 9195 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9210 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8168 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8182 | . 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 6013 ℝcr 8021 1c1 8023 + caddc 8025 4c4 9186 5c5 9187 |
| 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 8116 ax-addrcl 8119 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 df-2 9192 df-3 9193 df-4 9194 df-5 9195 |
| This theorem is referenced by: 5cn 9213 6re 9214 6pos 9234 3lt5 9310 2lt5 9311 1lt5 9312 5lt6 9313 4lt6 9314 5lt7 9319 4lt7 9320 5lt8 9326 4lt8 9327 5lt9 9334 4lt9 9335 5lt10 9735 4lt10 9736 5recm6rec 9744 5eluz3 9785 ef01bndlem 12307 vscandxnscandx 13235 slotsdifipndx 13248 slotstnscsi 13268 plendxnscandx 13281 slotsdnscsi 13296 lgsdir2lem1 15747 gausslemma2dlem4 15783 2lgslem3 15820 |
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