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| Mirrors > Home > ILE Home > Th. List > addrsub | GIF version | ||
| Description: Right-subtraction: Subtraction of the right summand from the result of an addition. (Contributed by BJ, 6-Jun-2019.) |
| Ref | Expression |
|---|---|
| addlsub.a | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addlsub.b | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addlsub.c | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| Ref | Expression |
|---|---|
| addrsub | ⊢ (𝜑 → ((𝐴 + 𝐵) = 𝐶 ↔ 𝐵 = (𝐶 − 𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addlsub.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | addlsub.b | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | 1, 2 | addcomd 8285 | . . 3 ⊢ (𝜑 → (𝐴 + 𝐵) = (𝐵 + 𝐴)) |
| 4 | 3 | eqeq1d 2238 | . 2 ⊢ (𝜑 → ((𝐴 + 𝐵) = 𝐶 ↔ (𝐵 + 𝐴) = 𝐶)) |
| 5 | addlsub.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 6 | 2, 1, 5 | addlsub 8504 | . 2 ⊢ (𝜑 → ((𝐵 + 𝐴) = 𝐶 ↔ 𝐵 = (𝐶 − 𝐴))) |
| 7 | 4, 6 | bitrd 188 | 1 ⊢ (𝜑 → ((𝐴 + 𝐵) = 𝐶 ↔ 𝐵 = (𝐶 − 𝐴))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 = wceq 1395 ∈ wcel 2200 (class class class)co 5994 ℂcc 7985 + caddc 7990 − cmin 8305 |
| 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-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4201 ax-pow 4257 ax-pr 4292 ax-setind 4626 ax-resscn 8079 ax-1cn 8080 ax-icn 8082 ax-addcl 8083 ax-addrcl 8084 ax-mulcl 8085 ax-addcom 8087 ax-addass 8089 ax-distr 8091 ax-i2m1 8092 ax-0id 8095 ax-rnegex 8096 ax-cnre 8098 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3888 df-br 4083 df-opab 4145 df-id 4381 df-xp 4722 df-rel 4723 df-cnv 4724 df-co 4725 df-dm 4726 df-iota 5274 df-fun 5316 df-fv 5322 df-riota 5947 df-ov 5997 df-oprab 5998 df-mpo 5999 df-sub 8307 |
| This theorem is referenced by: subexsub 8506 iooref1o 16333 |
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