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| Mirrors > Home > MPE Home > Th. List > 3wlkdlem3 | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for 3wlkd 30753. (Contributed by Alexander van der Vekens, 10-Nov-2017.) (Revised by AV, 7-Feb-2021.) |
| Ref | Expression |
|---|---|
| 3wlkd.p | ⊢ 𝑃 = 〈“𝐴𝐵𝐶𝐷”〉 |
| 3wlkd.f | ⊢ 𝐹 = 〈“𝐽𝐾𝐿”〉 |
| 3wlkd.s | ⊢ (𝜑 → ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑉))) |
| Ref | Expression |
|---|---|
| 3wlkdlem3 | ⊢ (𝜑 → (((𝑃‘0) = 𝐴 ∧ (𝑃‘1) = 𝐵) ∧ ((𝑃‘2) = 𝐶 ∧ (𝑃‘3) = 𝐷))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3wlkd.s | . 2 ⊢ (𝜑 → ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑉))) | |
| 2 | 3wlkd.p | . . . . . 6 ⊢ 𝑃 = 〈“𝐴𝐵𝐶𝐷”〉 | |
| 3 | 2 | fveq1i 6878 | . . . . 5 ⊢ (𝑃‘0) = (〈“𝐴𝐵𝐶𝐷”〉‘0) |
| 4 | s4fv0 15026 | . . . . 5 ⊢ (𝐴 ∈ 𝑉 → (〈“𝐴𝐵𝐶𝐷”〉‘0) = 𝐴) | |
| 5 | 3, 4 | eqtrid 2808 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → (𝑃‘0) = 𝐴) |
| 6 | 2 | fveq1i 6878 | . . . . 5 ⊢ (𝑃‘1) = (〈“𝐴𝐵𝐶𝐷”〉‘1) |
| 7 | s4fv1 15027 | . . . . 5 ⊢ (𝐵 ∈ 𝑉 → (〈“𝐴𝐵𝐶𝐷”〉‘1) = 𝐵) | |
| 8 | 6, 7 | eqtrid 2808 | . . . 4 ⊢ (𝐵 ∈ 𝑉 → (𝑃‘1) = 𝐵) |
| 9 | 5, 8 | anim12i 625 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → ((𝑃‘0) = 𝐴 ∧ (𝑃‘1) = 𝐵)) |
| 10 | 2 | fveq1i 6878 | . . . . 5 ⊢ (𝑃‘2) = (〈“𝐴𝐵𝐶𝐷”〉‘2) |
| 11 | s4fv2 15028 | . . . . 5 ⊢ (𝐶 ∈ 𝑉 → (〈“𝐴𝐵𝐶𝐷”〉‘2) = 𝐶) | |
| 12 | 10, 11 | eqtrid 2808 | . . . 4 ⊢ (𝐶 ∈ 𝑉 → (𝑃‘2) = 𝐶) |
| 13 | 2 | fveq1i 6878 | . . . . 5 ⊢ (𝑃‘3) = (〈“𝐴𝐵𝐶𝐷”〉‘3) |
| 14 | s4fv3 15029 | . . . . 5 ⊢ (𝐷 ∈ 𝑉 → (〈“𝐴𝐵𝐶𝐷”〉‘3) = 𝐷) | |
| 15 | 13, 14 | eqtrid 2808 | . . . 4 ⊢ (𝐷 ∈ 𝑉 → (𝑃‘3) = 𝐷) |
| 16 | 12, 15 | anim12i 625 | . . 3 ⊢ ((𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑉) → ((𝑃‘2) = 𝐶 ∧ (𝑃‘3) = 𝐷)) |
| 17 | 9, 16 | anim12i 625 | . 2 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑉)) → (((𝑃‘0) = 𝐴 ∧ (𝑃‘1) = 𝐵) ∧ ((𝑃‘2) = 𝐶 ∧ (𝑃‘3) = 𝐷))) |
| 18 | 1, 17 | syl 18 | 1 ⊢ (𝜑 → (((𝑃‘0) = 𝐴 ∧ (𝑃‘1) = 𝐵) ∧ ((𝑃‘2) = 𝐶 ∧ (𝑃‘3) = 𝐷))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ‘cfv 6531 0cc0 11181 1c1 11182 2c2 12378 3c3 12379 〈“cs3 14973 〈“cs4 14974 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8460 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-card 10001 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-nn 12317 df-2 12386 df-3 12387 df-n0 12588 df-z 12675 df-uz 12947 df-fz 13621 df-fzo 13769 df-hash 14455 df-word 14639 df-concat 14696 df-s1 14723 df-s2 14979 df-s3 14980 df-s4 14981 |
| This theorem is used by: 3wlkdlem4 30745 3wlkdlem5 30746 3pthdlem1 30747 3wlkdlem6 30748 3wlkdlem10 30752 3wlkond 30754 |
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