Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > ltadd12dd | Structured version Visualization version GIF version |
Description: Addition to both sides of 'less than'. (Contributed by Glauco Siliprandi, 11-Oct-2020.) |
Ref | Expression |
---|---|
ltadd12dd.a | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltadd12dd.b | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
ltadd12dd.c | ⊢ (𝜑 → 𝐶 ∈ ℝ) |
ltadd12dd.d | ⊢ (𝜑 → 𝐷 ∈ ℝ) |
ltadd12dd.ac | ⊢ (𝜑 → 𝐴 < 𝐶) |
ltadd12dd.bd | ⊢ (𝜑 → 𝐵 < 𝐷) |
Ref | Expression |
---|---|
ltadd12dd | ⊢ (𝜑 → (𝐴 + 𝐵) < (𝐶 + 𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltadd12dd.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
2 | ltadd12dd.b | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
3 | 1, 2 | readdcld 9948 | . 2 ⊢ (𝜑 → (𝐴 + 𝐵) ∈ ℝ) |
4 | ltadd12dd.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) | |
5 | 4, 2 | readdcld 9948 | . 2 ⊢ (𝜑 → (𝐶 + 𝐵) ∈ ℝ) |
6 | ltadd12dd.d | . . 3 ⊢ (𝜑 → 𝐷 ∈ ℝ) | |
7 | 4, 6 | readdcld 9948 | . 2 ⊢ (𝜑 → (𝐶 + 𝐷) ∈ ℝ) |
8 | ltadd12dd.ac | . . 3 ⊢ (𝜑 → 𝐴 < 𝐶) | |
9 | 1, 4, 2, 8 | ltadd1dd 10517 | . 2 ⊢ (𝜑 → (𝐴 + 𝐵) < (𝐶 + 𝐵)) |
10 | ltadd12dd.bd | . . 3 ⊢ (𝜑 → 𝐵 < 𝐷) | |
11 | 2, 6, 4, 10 | ltadd2dd 10075 | . 2 ⊢ (𝜑 → (𝐶 + 𝐵) < (𝐶 + 𝐷)) |
12 | 3, 5, 7, 9, 11 | lttrd 10077 | 1 ⊢ (𝜑 → (𝐴 + 𝐵) < (𝐶 + 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 class class class wbr 4583 (class class class)co 6549 ℝcr 9814 + caddc 9818 < clt 9953 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-po 4959 df-so 4960 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-ov 6552 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-ltxr 9958 |
This theorem is referenced by: sge0xaddlem1 39326 smfaddlem1 39649 |
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