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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 9183 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9198 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8156 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8170 | . 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 6007 ℝcr 8009 1c1 8011 + caddc 8013 4c4 9174 5c5 9175 |
| 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 8104 ax-addrcl 8107 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 df-2 9180 df-3 9181 df-4 9182 df-5 9183 |
| This theorem is referenced by: 5cn 9201 6re 9202 6pos 9222 3lt5 9298 2lt5 9299 1lt5 9300 5lt6 9301 4lt6 9302 5lt7 9307 4lt7 9308 5lt8 9314 4lt8 9315 5lt9 9322 4lt9 9323 5lt10 9723 4lt10 9724 5recm6rec 9732 ef01bndlem 12282 vscandxnscandx 13210 slotsdifipndx 13223 slotstnscsi 13243 plendxnscandx 13256 slotsdnscsi 13271 lgsdir2lem1 15722 gausslemma2dlem4 15758 2lgslem3 15795 |
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