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Theorem 6re 9202
Description: The number 6 is real. (Contributed by NM, 27-May-1999.)
Assertion
Ref Expression
6re 6 ∈ ℝ

Proof of Theorem 6re
StepHypRef Expression
1 df-6 9184 . 2 6 = (5 + 1)
2 5re 9200 . . 3 5 ∈ ℝ
3 1re 8156 . . 3 1 ∈ ℝ
42, 3readdcli 8170 . 2 (5 + 1) ∈ ℝ
51, 4eqeltri 2302 1 6 ∈ ℝ
Colors of variables: wff set class
Syntax hints:  wcel 2200  (class class class)co 6007  cr 8009  1c1 8011   + caddc 8013  5c5 9175  6c6 9176
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  df-5 9183  df-6 9184
This theorem is referenced by:  6cn  9203  7re  9204  7pos  9223  4lt6  9302  3lt6  9303  2lt6  9304  1lt6  9305  6lt7  9306  5lt7  9307  6lt8  9313  5lt8  9314  6lt9  9321  5lt9  9322  8th4div3  9341  halfpm6th  9342  div4p1lem1div2  9376  6lt10  9722  5lt10  9723  5recm6rec  9732  efi4p  12243  resin4p  12244  recos4p  12245  ef01bndlem  12282  sin01bnd  12283  cos01bnd  12284  slotsdifipndx  13223  slotstnscsi  13243  plendxnvscandx  13257  slotsdnscsi  13271  sincos6thpi  15531  pigt3  15533
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