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| Mirrors > Home > MPE Home > Th. List > vdwapid1 | Structured version Visualization version GIF version | ||
| Description: The first element of an arithmetic progression. (Contributed by Mario Carneiro, 12-Sep-2014.) |
| Ref | Expression |
|---|---|
| vdwapid1 | ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → 𝐴 ∈ (𝐴(AP‘𝐾)𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssun1 4127 | . . 3 ⊢ {𝐴} ⊆ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷)) | |
| 2 | snssg 4735 | . . . 4 ⊢ (𝐴 ∈ ℕ → (𝐴 ∈ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷)) ↔ {𝐴} ⊆ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷)))) | |
| 3 | 2 | 3ad2ant2 1134 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (𝐴 ∈ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷)) ↔ {𝐴} ⊆ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷)))) |
| 4 | 1, 3 | mpbiri 258 | . 2 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → 𝐴 ∈ ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷))) |
| 5 | nncn 12140 | . . . . . . 7 ⊢ (𝐾 ∈ ℕ → 𝐾 ∈ ℂ) | |
| 6 | 5 | 3ad2ant1 1133 | . . . . . 6 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → 𝐾 ∈ ℂ) |
| 7 | ax-1cn 11071 | . . . . . 6 ⊢ 1 ∈ ℂ | |
| 8 | npcan 11376 | . . . . . 6 ⊢ ((𝐾 ∈ ℂ ∧ 1 ∈ ℂ) → ((𝐾 − 1) + 1) = 𝐾) | |
| 9 | 6, 7, 8 | sylancl 586 | . . . . 5 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → ((𝐾 − 1) + 1) = 𝐾) |
| 10 | 9 | fveq2d 6832 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (AP‘((𝐾 − 1) + 1)) = (AP‘𝐾)) |
| 11 | 10 | oveqd 7369 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (𝐴(AP‘((𝐾 − 1) + 1))𝐷) = (𝐴(AP‘𝐾)𝐷)) |
| 12 | nnm1nn0 12429 | . . . 4 ⊢ (𝐾 ∈ ℕ → (𝐾 − 1) ∈ ℕ0) | |
| 13 | vdwapun 16888 | . . . 4 ⊢ (((𝐾 − 1) ∈ ℕ0 ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (𝐴(AP‘((𝐾 − 1) + 1))𝐷) = ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷))) | |
| 14 | 12, 13 | syl3an1 1163 | . . 3 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (𝐴(AP‘((𝐾 − 1) + 1))𝐷) = ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷))) |
| 15 | 11, 14 | eqtr3d 2770 | . 2 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → (𝐴(AP‘𝐾)𝐷) = ({𝐴} ∪ ((𝐴 + 𝐷)(AP‘(𝐾 − 1))𝐷))) |
| 16 | 4, 15 | eleqtrrd 2836 | 1 ⊢ ((𝐾 ∈ ℕ ∧ 𝐴 ∈ ℕ ∧ 𝐷 ∈ ℕ) → 𝐴 ∈ (𝐴(AP‘𝐾)𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ w3a 1086 = wceq 1541 ∈ wcel 2113 ∪ cun 3896 ⊆ wss 3898 {csn 4575 ‘cfv 6486 (class class class)co 7352 ℂcc 11011 1c1 11014 + caddc 11016 − cmin 11351 ℕcn 12132 ℕ0cn0 12388 APcvdwa 16879 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5219 ax-sep 5236 ax-nul 5246 ax-pow 5305 ax-pr 5372 ax-un 7674 ax-cnex 11069 ax-resscn 11070 ax-1cn 11071 ax-icn 11072 ax-addcl 11073 ax-addrcl 11074 ax-mulcl 11075 ax-mulrcl 11076 ax-mulcom 11077 ax-addass 11078 ax-mulass 11079 ax-distr 11080 ax-i2m1 11081 ax-1ne0 11082 ax-1rid 11083 ax-rnegex 11084 ax-rrecex 11085 ax-cnre 11086 ax-pre-lttri 11087 ax-pre-lttrn 11088 ax-pre-ltadd 11089 ax-pre-mulgt0 11090 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4283 df-if 4475 df-pw 4551 df-sn 4576 df-pr 4578 df-op 4582 df-uni 4859 df-iun 4943 df-br 5094 df-opab 5156 df-mpt 5175 df-tr 5201 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7309 df-ov 7355 df-oprab 7356 df-mpo 7357 df-om 7803 df-1st 7927 df-2nd 7928 df-frecs 8217 df-wrecs 8248 df-recs 8297 df-rdg 8335 df-er 8628 df-en 8876 df-dom 8877 df-sdom 8878 df-pnf 11155 df-mnf 11156 df-xr 11157 df-ltxr 11158 df-le 11159 df-sub 11353 df-neg 11354 df-nn 12133 df-n0 12389 df-z 12476 df-uz 12739 df-fz 13410 df-vdwap 16882 |
| This theorem is referenced by: vdwmc2 16893 vdwlem5 16899 vdwlem6 16900 vdwlem8 16902 vdwlem9 16903 vdwlem11 16905 |
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