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| Mirrors > Home > MPE Home > Th. List > 10re | Structured version Visualization version GIF version | ||
| Description: The number 10 is real. (Contributed by NM, 5-Feb-2007.) (Revised by AV, 8-Sep-2021.) Reduce dependencies on axioms. (Revised by Steven Nguyen, 8-Oct-2022.) |
| Ref | Expression |
|---|---|
| 10re | ⊢ ;10 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-dec 12620 | . 2 ⊢ ;10 = (((9 + 1) · 1) + 0) | |
| 2 | 9re 12256 | . . . . 5 ⊢ 9 ∈ ℝ | |
| 3 | 1re 11144 | . . . . 5 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | readdcli 11159 | . . . 4 ⊢ (9 + 1) ∈ ℝ |
| 5 | 4, 3 | remulcli 11160 | . . 3 ⊢ ((9 + 1) · 1) ∈ ℝ |
| 6 | 0re 11146 | . . 3 ⊢ 0 ∈ ℝ | |
| 7 | 5, 6 | readdcli 11159 | . 2 ⊢ (((9 + 1) · 1) + 0) ∈ ℝ |
| 8 | 1, 7 | eqeltri 2833 | 1 ⊢ ;10 ∈ ℝ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7368 ℝcr 11037 0cc0 11038 1c1 11039 + caddc 11041 · cmul 11043 9c9 12219 ;cdc 12619 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-i2m1 11106 ax-1ne0 11107 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-iota 6456 df-fv 6508 df-ov 7371 df-2 12220 df-3 12221 df-4 12222 df-5 12223 df-6 12224 df-7 12225 df-8 12226 df-9 12227 df-dec 12620 |
| This theorem is referenced by: 8lt10 12751 7lt10 12752 6lt10 12753 5lt10 12754 4lt10 12755 3lt10 12756 2lt10 12757 1lt10 12758 0.999... 15816 bpoly4 15994 plendxnocndx 17316 slotsdifdsndx 17326 slotsdifunifndx 17333 slotsdifplendx2 17348 bposlem4 27269 bposlem5 27270 dp2cl 32976 dp2lt10 32980 dp2lt 32981 dp2ltsuc 32982 dp2ltc 32983 dpfrac1 32988 dplti 33001 dpgti 33002 dpexpp1 33004 hgt750lem 34833 problem2 35886 lcmineqlem23 42425 aks4d1p1p7 42448 bgoldbtbndlem1 48169 tgblthelfgott 48179 tgoldbach 48181 |
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