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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 9365 |
. 2
| |
| 2 | 3re 9378 |
. . 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 9363 df-3 9364 df-4 9365 |
| This theorem is used by: 4cn 9382 5re 9383 4ne0 9402 4ap0 9403 5pos 9404 2lt4 9478 1lt4 9479 4lt5 9480 3lt5 9481 2lt5 9482 1lt5 9483 4lt6 9485 3lt6 9486 4lt7 9491 3lt7 9492 4lt8 9498 3lt8 9499 4lt9 9506 3lt9 9507 8th4div3 9524 div4p1lem1div2 9559 4lt10 9912 3lt10 9913 uzuzle24 9963 uzuzle34 9964 eluz4eluz2 9968 fz0to4untppr 10531 fzo0to42pr 10638 fldiv4p1lem1div2 10740 faclbnd2 11180 4bc2eq6 11213 resqrexlemover 11776 resqrexlemcalc1 11780 resqrexlemcalc2 11781 resqrexlemcalc3 11782 resqrexlemnm 11784 resqrexlemga 11789 sqrt2gt1lt2 11815 amgm2 11884 ef01bndlem 12523 sin01bnd 12524 cos01bnd 12525 cos2bnd 12527 flodddiv4 12703 4sqlem12 13181 tsetndxnstarvndx 13548 slotsdifplendx 13564 slotsdifdsndx 13579 slotsdifunifndx 13586 dveflem 15827 sin0pilem2 15883 sinhalfpilem 15892 sincosq1lem 15926 coseq0negpitopi 15937 tangtx 15939 sincos4thpi 15941 pigt3 15945 gausslemma2dlem0d 16171 gausslemma2dlem3 16182 gausslemma2dlem4 16183 |
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