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| Mirrors > Home > ILE Home > Th. List > 4re | Unicode version | ||
| Description: The number 4 is real. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 4re |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-4 9204 |
. 2
| |
| 2 | 3re 9217 |
. . 3
| |
| 3 | 1re 8178 |
. . 3
| |
| 4 | 2, 3 | readdcli 8192 |
. 2
|
| 5 | 1, 4 | eqeltri 2304 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 8126 ax-addrcl 8129 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 df-2 9202 df-3 9203 df-4 9204 |
| This theorem is referenced by: 4cn 9221 5re 9222 4ne0 9241 4ap0 9242 5pos 9243 2lt4 9317 1lt4 9318 4lt5 9319 3lt5 9320 2lt5 9321 1lt5 9322 4lt6 9324 3lt6 9325 4lt7 9330 3lt7 9331 4lt8 9337 3lt8 9338 4lt9 9345 3lt9 9346 8th4div3 9363 div4p1lem1div2 9398 4lt10 9746 3lt10 9747 uzuzle24 9797 uzuzle34 9798 eluz4eluz2 9802 fz0to4untppr 10359 fzo0to42pr 10466 fldiv4p1lem1div2 10566 faclbnd2 11005 4bc2eq6 11037 resqrexlemover 11588 resqrexlemcalc1 11592 resqrexlemcalc2 11593 resqrexlemcalc3 11594 resqrexlemnm 11596 resqrexlemga 11601 sqrt2gt1lt2 11627 amgm2 11696 ef01bndlem 12335 sin01bnd 12336 cos01bnd 12337 cos2bnd 12339 flodddiv4 12515 4sqlem12 12993 tsetndxnstarvndx 13295 slotsdifplendx 13311 slotsdifdsndx 13326 slotsdifunifndx 13333 dveflem 15469 sin0pilem2 15525 sinhalfpilem 15534 sincosq1lem 15568 coseq0negpitopi 15579 tangtx 15581 sincos4thpi 15583 pigt3 15587 gausslemma2dlem0d 15800 gausslemma2dlem3 15811 gausslemma2dlem4 15812 |
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