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Mirrors > Home > ILE Home > Th. List > addcomd | GIF version |
Description: Addition commutes. Based on ideas by Eric Schmidt. (Contributed by Scott Fenton, 3-Jan-2013.) (Revised by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
muld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
addcomd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
Ref | Expression |
---|---|
addcomd | ⊢ (𝜑 → (𝐴 + 𝐵) = (𝐵 + 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | muld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
2 | addcomd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
3 | addcom 7245 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 𝐵) = (𝐵 + 𝐴)) | |
4 | 1, 2, 3 | syl2anc 403 | 1 ⊢ (𝜑 → (𝐴 + 𝐵) = (𝐵 + 𝐴)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1284 ∈ wcel 1433 (class class class)co 5532 ℂcc 6979 + caddc 6984 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia3 106 ax-addcom 7076 |
This theorem is referenced by: muladd11r 7264 comraddd 7265 subadd2 7312 pncan 7314 npcan 7317 subcan 7363 subaddeqd 7473 addrsub 7475 ltadd1 7533 leadd2 7535 ltsubadd2 7537 lesubadd2 7539 mulreim 7704 apadd2 7709 recp1lt1 7977 ltaddrp2d 8808 lincmb01cmp 9025 iccf1o 9026 rebtwn2zlemstep 9261 qavgle 9267 modqaddabs 9364 mulqaddmodid 9366 qnegmod 9371 modqadd2mod 9376 modqadd12d 9382 modqaddmulmod 9393 addmodlteq 9400 expaddzap 9520 bcn2m1 9696 bcn2p1 9697 remullem 9758 resqrexlemover 9896 maxabslemab 10092 maxabslemval 10094 climaddc2 10168 clim2iser2 10176 gcdaddm 10375 |
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