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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 9098 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9113 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8071 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8085 | . 2 ⊢ (4 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2278 | 1 ⊢ 5 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2176 (class class class)co 5944 ℝcr 7924 1c1 7926 + caddc 7928 4c4 9089 5c5 9090 |
| 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 1470 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-4 1533 ax-17 1549 ax-ial 1557 ax-ext 2187 ax-1re 8019 ax-addrcl 8022 |
| This theorem depends on definitions: df-bi 117 df-cleq 2198 df-clel 2201 df-2 9095 df-3 9096 df-4 9097 df-5 9098 |
| This theorem is referenced by: 5cn 9116 6re 9117 6pos 9137 3lt5 9213 2lt5 9214 1lt5 9215 5lt6 9216 4lt6 9217 5lt7 9222 4lt7 9223 5lt8 9229 4lt8 9230 5lt9 9237 4lt9 9238 5lt10 9638 4lt10 9639 5recm6rec 9647 ef01bndlem 12067 vscandxnscandx 12994 slotsdifipndx 13007 slotstnscsi 13027 plendxnscandx 13040 slotsdnscsi 13055 lgsdir2lem1 15505 gausslemma2dlem4 15541 2lgslem3 15578 |
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