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| Mirrors > Home > ILE Home > Th. List > addassd | GIF version | ||
| Description: Associative law for addition. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| addcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addassd.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| Ref | Expression |
|---|---|
| addassd | ⊢ (𝜑 → ((𝐴 + 𝐵) + 𝐶) = (𝐴 + (𝐵 + 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | addcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | addassd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 4 | addass 8273 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐵) + 𝐶) = (𝐴 + (𝐵 + 𝐶))) | |
| 5 | 1, 2, 3, 4 | syl3anc 1274 | 1 ⊢ (𝜑 → ((𝐴 + 𝐵) + 𝐶) = (𝐴 + (𝐵 + 𝐶))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2205 (class class class)co 6058 ℂcc 8141 + caddc 8146 |
| 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-addass 8245 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 |
| This theorem is referenced by: readdcan 8430 muladd11r 8446 cnegexlem1 8465 cnegex 8468 addcan 8470 addcan2 8471 negeu 8481 addsubass 8500 nppcan3 8514 muladd 8675 ltadd2 8711 add1p1 9508 div4p1lem1div2 9512 peano2z 9633 zaddcllempos 9634 zpnn0elfzo1 10578 exbtwnzlemstep 10634 rebtwn2zlemstep 10639 flhalf 10689 flqdiv 10710 binom2 11040 binom3 11046 bernneq 11050 omgadd 11194 ccatass 11324 cvg1nlemres 11698 recvguniqlem 11707 resqrexlemover 11723 bdtrilem 11952 bdtri 11953 bcxmas 12203 efsep 12405 efi4p 12431 efival 12446 divalglemnqt 12634 flodddiv4 12650 gcdaddm 12708 pcadd2 13067 4sqlem11 13127 limcimolemlt 15658 tangtx 15832 binom4 15973 2lgslem3c 16097 2lgslem3d 16098 qdiff 16972 |
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