| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 9367 |
. 2
| |
| 2 | 3re 9380 |
. . 3
| |
| 3 | 1re 8325 |
. . 3
| |
| 4 | 2, 3 | readdcli 8339 |
. 2
|
| 5 | 1, 4 | eqeltri 2311 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| 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 8273 ax-addrcl 8276 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 df-2 9365 df-3 9366 df-4 9367 |
| This theorem is used by: 4cn 9384 5re 9385 4ne0 9404 4ap0 9405 5pos 9406 2lt4 9482 1lt4 9483 4lt5 9484 3lt5 9485 2lt5 9486 1lt5 9487 4lt6 9489 3lt6 9490 4lt7 9495 3lt7 9496 4lt8 9502 3lt8 9503 4lt9 9510 3lt9 9511 8th4div3 9528 div4p1lem1div2 9563 4lt10 9921 3lt10 9922 uzuzle24 9972 uzuzle34 9973 eluz4eluz2 9977 fz0to4untppr 10541 fzo0to42pr 10648 fldiv4p1lem1div2 10753 faclbnd2 11194 4bc2eq6 11227 resqrexlemover 11790 resqrexlemcalc1 11794 resqrexlemcalc2 11795 resqrexlemcalc3 11796 resqrexlemnm 11798 resqrexlemga 11803 sqrt2gt1lt2 11829 amgm2 11899 ef01bndlem 12539 sin01bnd 12540 cos01bnd 12541 cos2bnd 12543 flodddiv4 12719 4sqlem12 13201 tsetndxnstarvndx 13597 slotsdifplendx 13613 slotsdifdsndx 13628 slotsdifunifndx 13635 dveflem 15876 sin0pilem2 15933 sinhalfpilem 15942 sincosq1lem 15976 coseq0negpitopi 15987 tangtx 15989 sincos4thpi 15991 pigt3 15995 bposlem2 16210 gausslemma2dlem0d 16269 gausslemma2dlem3 16280 gausslemma2dlem4 16281 |
| Copyright terms: Public domain | W3C validator |