| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > 3re | GIF version | ||
| Description: The number 3 is real. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 3re | ⊢ 3 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3 9245 | . 2 ⊢ 3 = (2 + 1) | |
| 2 | 2re 9255 | . . 3 ⊢ 2 ∈ ℝ | |
| 3 | 1re 8221 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 8235 | . 2 ⊢ (2 + 1) ∈ ℝ |
| 5 | 1, 4 | eqeltri 2304 | 1 ⊢ 3 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 (class class class)co 6028 ℝcr 8074 1c1 8076 + caddc 8078 2c2 9236 3c3 9237 |
| 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 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-4 1559 ax-17 1575 ax-ial 1583 ax-ext 2213 ax-1re 8169 ax-addrcl 8172 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 df-2 9244 df-3 9245 |
| This theorem is referenced by: 3cn 9260 4re 9262 3ne0 9280 3ap0 9281 4pos 9282 1lt3 9357 3lt4 9358 2lt4 9359 3lt5 9362 3lt6 9367 2lt6 9368 3lt7 9373 2lt7 9374 3lt8 9380 2lt8 9381 3lt9 9388 2lt9 9389 1le3 9397 8th4div3 9405 halfpm6th 9406 3halfnz 9621 3lt10 9791 2lt10 9792 5eluz3 9839 uzuzle23 9840 uzuzle34 9842 uz3m2nn 9851 nn01to3 9895 3rp 9938 fz0to4untppr 10404 expnass 10953 sqrt9 11671 ef01bndlem 12380 sin01bnd 12381 cos2bnd 12384 sin01gt0 12386 cos01gt0 12387 egt2lt3 12404 flodddiv4 12560 starvndxnmulrndx 13290 scandxnmulrndx 13302 vscandxnmulrndx 13307 ipndxnmulrndx 13320 tsetndxnmulrndx 13339 plendxnmulrndx 13353 dsndxnmulrndx 13368 slotsdifunifndx 13378 dveflem 15520 sincosq3sgn 15622 sincosq4sgn 15623 cosq23lt0 15627 coseq0q4123 15628 coseq00topi 15629 coseq0negpitopi 15630 tangtx 15632 sincos6thpi 15636 pigt3 15638 pige3 15639 cos02pilt1 15645 lgsdir2lem1 15830 2lgslem3 15903 konigsbergiedgwen 16408 konigsberglem1 16412 konigsberglem2 16413 konigsberglem3 16414 konigsberglem4 16415 ex-fl 16422 ex-gcd 16428 |
| Copyright terms: Public domain | W3C validator |