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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 9133 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9148 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8106 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8120 | . 2 ⊢ (4 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2280 | 1 ⊢ 5 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2178 (class class class)co 5967 ℝcr 7959 1c1 7961 + caddc 7963 4c4 9124 5c5 9125 |
| 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 1471 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-4 1534 ax-17 1550 ax-ial 1558 ax-ext 2189 ax-1re 8054 ax-addrcl 8057 |
| This theorem depends on definitions: df-bi 117 df-cleq 2200 df-clel 2203 df-2 9130 df-3 9131 df-4 9132 df-5 9133 |
| This theorem is referenced by: 5cn 9151 6re 9152 6pos 9172 3lt5 9248 2lt5 9249 1lt5 9250 5lt6 9251 4lt6 9252 5lt7 9257 4lt7 9258 5lt8 9264 4lt8 9265 5lt9 9272 4lt9 9273 5lt10 9673 4lt10 9674 5recm6rec 9682 ef01bndlem 12182 vscandxnscandx 13109 slotsdifipndx 13122 slotstnscsi 13142 plendxnscandx 13155 slotsdnscsi 13170 lgsdir2lem1 15620 gausslemma2dlem4 15656 2lgslem3 15693 |
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