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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 9182 |
. 2
| |
| 2 | 3re 9195 |
. . 3
| |
| 3 | 1re 8156 |
. . 3
| |
| 4 | 2, 3 | readdcli 8170 |
. 2
|
| 5 | 1, 4 | eqeltri 2302 |
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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 ax-1re 8104 ax-addrcl 8107 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 df-2 9180 df-3 9181 df-4 9182 |
| This theorem is referenced by: 4cn 9199 5re 9200 4ne0 9219 4ap0 9220 5pos 9221 2lt4 9295 1lt4 9296 4lt5 9297 3lt5 9298 2lt5 9299 1lt5 9300 4lt6 9302 3lt6 9303 4lt7 9308 3lt7 9309 4lt8 9315 3lt8 9316 4lt9 9323 3lt9 9324 8th4div3 9341 div4p1lem1div2 9376 4lt10 9724 3lt10 9725 eluz4eluz2 9774 fz0to4untppr 10332 fzo0to42pr 10438 fldiv4p1lem1div2 10537 faclbnd2 10976 4bc2eq6 11008 resqrexlemover 11537 resqrexlemcalc1 11541 resqrexlemcalc2 11542 resqrexlemcalc3 11543 resqrexlemnm 11545 resqrexlemga 11550 sqrt2gt1lt2 11576 amgm2 11645 ef01bndlem 12283 sin01bnd 12284 cos01bnd 12285 cos2bnd 12287 flodddiv4 12463 4sqlem12 12941 tsetndxnstarvndx 13243 slotsdifplendx 13259 slotsdifdsndx 13274 slotsdifunifndx 13281 dveflem 15416 sin0pilem2 15472 sinhalfpilem 15481 sincosq1lem 15515 coseq0negpitopi 15526 tangtx 15528 sincos4thpi 15530 pigt3 15534 gausslemma2dlem0d 15747 gausslemma2dlem3 15758 gausslemma2dlem4 15759 |
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