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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 9204 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9219 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8177 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8191 | . 2 ⊢ (4 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2304 | 1 ⊢ 5 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 (class class class)co 6017 ℝcr 8030 1c1 8032 + caddc 8034 4c4 9195 5c5 9196 |
| 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 1495 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-4 1558 ax-17 1574 ax-ial 1582 ax-ext 2213 ax-1re 8125 ax-addrcl 8128 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 df-2 9201 df-3 9202 df-4 9203 df-5 9204 |
| This theorem is referenced by: 5cn 9222 6re 9223 6pos 9243 3lt5 9319 2lt5 9320 1lt5 9321 5lt6 9322 4lt6 9323 5lt7 9328 4lt7 9329 5lt8 9335 4lt8 9336 5lt9 9343 4lt9 9344 5lt10 9744 4lt10 9745 5recm6rec 9753 5eluz3 9794 ef01bndlem 12316 vscandxnscandx 13244 slotsdifipndx 13257 slotstnscsi 13277 plendxnscandx 13290 slotsdnscsi 13305 lgsdir2lem1 15756 gausslemma2dlem4 15792 2lgslem3 15829 |
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