| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 9375 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4re 9390 | . . 3 ⊢ 4 ∈ ℝ | |
| 3 | 1re 8331 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8345 | . 2 ⊢ (4 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2311 | 1 ⊢ 5 ∈ ℝ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 (class class class)co 6088 ℝcr 8184 1c1 8186 + caddc 8188 4c4 9366 5c5 9367 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1re 8279 ax-addrcl 8282 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 df-2 9372 df-3 9373 df-4 9374 df-5 9375 |
| This theorem is used by: 5cn 9393 6re 9394 6pos 9414 3lt5 9492 2lt5 9493 1lt5 9494 5lt6 9495 4lt6 9496 5lt7 9501 4lt7 9502 5lt8 9508 4lt8 9509 5lt9 9516 4lt9 9517 5lt10 9927 4lt10 9928 5recm6rec 9936 5eluz3 9977 ef01bndlem 12548 prmlem1 13251 vscandxnscandx 13575 slotsdifipndx 13588 slotstnscsi 13608 plendxnscandx 13621 slotsdnscsi 13636 ppiublem1 16291 ppiqub 16293 bposlem3 16313 bposlem4 16314 bposlem5 16315 bposlem6 16316 bposlem8 16318 bposlem9 16319 lgsdir2lem1 16352 gausslemma2dlem4 16388 2lgslem3 16425 |
| Copyright terms: Public domain | W3C validator |