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Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > dpval3 | Structured version Visualization version GIF version |
Description: Value of the decimal point construct. (Contributed by Thierry Arnoux, 16-Dec-2021.) |
Ref | Expression |
---|---|
dpval2.a | ⊢ 𝐴 ∈ ℕ0 |
dpval2.b | ⊢ 𝐵 ∈ ℝ |
Ref | Expression |
---|---|
dpval3 | ⊢ (𝐴.𝐵) = _𝐴𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dpval2.a | . . 3 ⊢ 𝐴 ∈ ℕ0 | |
2 | dpval2.b | . . 3 ⊢ 𝐵 ∈ ℝ | |
3 | 1, 2 | dpval2 30304 | . 2 ⊢ (𝐴.𝐵) = (𝐴 + (𝐵 / ;10)) |
4 | df-dp2 30283 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
5 | 3, 4 | eqtr4i 2799 | 1 ⊢ (𝐴.𝐵) = _𝐴𝐵 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1507 ∈ wcel 2048 (class class class)co 6970 ℝcr 10326 0cc0 10327 1c1 10328 + caddc 10330 / cdiv 11090 ℕ0cn0 11700 ;cdc 11904 _cdp2 30282 .cdp 30299 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1758 ax-4 1772 ax-5 1869 ax-6 1928 ax-7 1964 ax-8 2050 ax-9 2057 ax-10 2077 ax-11 2091 ax-12 2104 ax-13 2299 ax-ext 2745 ax-sep 5054 ax-nul 5061 ax-pr 5180 |
This theorem depends on definitions: df-bi 199 df-an 388 df-or 834 df-3an 1070 df-tru 1510 df-ex 1743 df-nf 1747 df-sb 2014 df-mo 2544 df-eu 2580 df-clab 2754 df-cleq 2765 df-clel 2840 df-nfc 2912 df-ral 3087 df-rex 3088 df-rab 3091 df-v 3411 df-sbc 3678 df-dif 3828 df-un 3830 df-in 3832 df-ss 3839 df-nul 4174 df-if 4345 df-sn 4436 df-pr 4438 df-op 4442 df-uni 4707 df-br 4924 df-opab 4986 df-id 5305 df-xp 5406 df-rel 5407 df-cnv 5408 df-co 5409 df-dm 5410 df-iota 6146 df-fun 6184 df-fv 6190 df-ov 6973 df-oprab 6974 df-mpo 6975 df-dp2 30283 df-dp 30300 |
This theorem is referenced by: dpmul100 30308 dpval3rp 30311 dp0u 30312 |
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