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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 8781 | . 2 | |
2 | 3re 8794 | . . 3 | |
3 | 1re 7765 | . . 3 | |
4 | 2, 3 | readdcli 7779 | . 2 |
5 | 1, 4 | eqeltri 2212 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 1480 (class class class)co 5774 cr 7619 c1 7621 caddc 7623 c3 8772 c4 8773 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-4 1487 ax-17 1506 ax-ial 1514 ax-ext 2121 ax-1re 7714 ax-addrcl 7717 |
This theorem depends on definitions: df-bi 116 df-cleq 2132 df-clel 2135 df-2 8779 df-3 8780 df-4 8781 |
This theorem is referenced by: 4cn 8798 5re 8799 4ne0 8818 4ap0 8819 5pos 8820 2lt4 8893 1lt4 8894 4lt5 8895 3lt5 8896 2lt5 8897 1lt5 8898 4lt6 8900 3lt6 8901 4lt7 8906 3lt7 8907 4lt8 8913 3lt8 8914 4lt9 8921 3lt9 8922 8th4div3 8939 div4p1lem1div2 8973 4lt10 9317 3lt10 9318 fzo0to42pr 9997 fldiv4p1lem1div2 10078 faclbnd2 10488 4bc2eq6 10520 resqrexlemover 10782 resqrexlemcalc1 10786 resqrexlemcalc2 10787 resqrexlemcalc3 10788 resqrexlemnm 10790 resqrexlemga 10795 sqrt2gt1lt2 10821 amgm2 10890 ef01bndlem 11463 sin01bnd 11464 cos01bnd 11465 cos2bnd 11467 flodddiv4 11631 dveflem 12855 sin0pilem2 12863 sinhalfpilem 12872 sincosq1lem 12906 coseq0negpitopi 12917 tangtx 12919 sincos4thpi 12921 pigt3 12925 |
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