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| Mirrors > Home > MPE Home > Th. List > pncan3s | Structured version Visualization version GIF version | ||
| Description: Subtraction and addition of equals. (Contributed by Scott Fenton, 4-Feb-2025.) |
| Ref | Expression |
|---|---|
| pncan3s | ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → (𝐴 +s (𝐵 −s 𝐴)) = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2760 | . 2 ⊢ (𝐵 −s 𝐴) = (𝐵 −s 𝐴) | |
| 2 | simpr 490 | . . 3 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → 𝐵 ∈ No) | |
| 3 | simpl 488 | . . 3 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → 𝐴 ∈ No) | |
| 4 | 2, 3 | subscld 28449 | . . 3 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → (𝐵 −s 𝐴) ∈ No) |
| 5 | 2, 3, 4 | subaddsd 28457 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → ((𝐵 −s 𝐴) = (𝐵 −s 𝐴) ↔ (𝐴 +s (𝐵 −s 𝐴)) = 𝐵)) |
| 6 | 1, 5 | mpbii 236 | 1 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No) → (𝐴 +s (𝐵 −s 𝐴)) = 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 (class class class)co 7420 Nocsur 27997 +s cadds 28345 −s csubs 28406 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-tp 4588 df-op 4590 df-ot 4592 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-1o 8476 df-2o 8477 df-nadd 8675 df-no 28000 df-lts 28001 df-bday 28002 df-les 28102 df-slts 28144 df-cuts 28146 df-0s 28193 df-made 28213 df-old 28214 df-left 28216 df-right 28217 df-norec 28324 df-norec2 28335 df-adds 28346 df-negs 28407 df-subs 28408 |
| This theorem is used by: npcans 28461 nncansd 28483 subsdid 28544 mulsunif2lem 28555 n0ltsp1le 28751 elreno2 28881 |
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