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Mirrors > Home > MPE Home > Th. List > 2wlkdlem9 | Structured version Visualization version GIF version |
Description: Lemma 9 for 2wlkd 29873. (Contributed by AV, 14-Feb-2021.) |
Ref | Expression |
---|---|
2wlkd.p | ⊢ 𝑃 = 〈“𝐴𝐵𝐶”〉 |
2wlkd.f | ⊢ 𝐹 = 〈“𝐽𝐾”〉 |
2wlkd.s | ⊢ (𝜑 → (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) |
2wlkd.n | ⊢ (𝜑 → (𝐴 ≠ 𝐵 ∧ 𝐵 ≠ 𝐶)) |
2wlkd.e | ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐶} ⊆ (𝐼‘𝐾))) |
Ref | Expression |
---|---|
2wlkdlem9 | ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘(𝐹‘0)) ∧ {𝐵, 𝐶} ⊆ (𝐼‘(𝐹‘1)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2wlkd.e | . 2 ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐶} ⊆ (𝐼‘𝐾))) | |
2 | 2wlkd.p | . . . 4 ⊢ 𝑃 = 〈“𝐴𝐵𝐶”〉 | |
3 | 2wlkd.f | . . . 4 ⊢ 𝐹 = 〈“𝐽𝐾”〉 | |
4 | 2wlkd.s | . . . 4 ⊢ (𝜑 → (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) | |
5 | 2wlkd.n | . . . 4 ⊢ (𝜑 → (𝐴 ≠ 𝐵 ∧ 𝐵 ≠ 𝐶)) | |
6 | 2, 3, 4, 5, 1 | 2wlkdlem8 29870 | . . 3 ⊢ (𝜑 → ((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾)) |
7 | fveq2 6903 | . . . . . 6 ⊢ ((𝐹‘0) = 𝐽 → (𝐼‘(𝐹‘0)) = (𝐼‘𝐽)) | |
8 | 7 | adantr 479 | . . . . 5 ⊢ (((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾) → (𝐼‘(𝐹‘0)) = (𝐼‘𝐽)) |
9 | 8 | sseq2d 4012 | . . . 4 ⊢ (((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾) → ({𝐴, 𝐵} ⊆ (𝐼‘(𝐹‘0)) ↔ {𝐴, 𝐵} ⊆ (𝐼‘𝐽))) |
10 | fveq2 6903 | . . . . . 6 ⊢ ((𝐹‘1) = 𝐾 → (𝐼‘(𝐹‘1)) = (𝐼‘𝐾)) | |
11 | 10 | adantl 480 | . . . . 5 ⊢ (((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾) → (𝐼‘(𝐹‘1)) = (𝐼‘𝐾)) |
12 | 11 | sseq2d 4012 | . . . 4 ⊢ (((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾) → ({𝐵, 𝐶} ⊆ (𝐼‘(𝐹‘1)) ↔ {𝐵, 𝐶} ⊆ (𝐼‘𝐾))) |
13 | 9, 12 | anbi12d 630 | . . 3 ⊢ (((𝐹‘0) = 𝐽 ∧ (𝐹‘1) = 𝐾) → (({𝐴, 𝐵} ⊆ (𝐼‘(𝐹‘0)) ∧ {𝐵, 𝐶} ⊆ (𝐼‘(𝐹‘1))) ↔ ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐶} ⊆ (𝐼‘𝐾)))) |
14 | 6, 13 | syl 17 | . 2 ⊢ (𝜑 → (({𝐴, 𝐵} ⊆ (𝐼‘(𝐹‘0)) ∧ {𝐵, 𝐶} ⊆ (𝐼‘(𝐹‘1))) ↔ ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐶} ⊆ (𝐼‘𝐾)))) |
15 | 1, 14 | mpbird 256 | 1 ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘(𝐹‘0)) ∧ {𝐵, 𝐶} ⊆ (𝐼‘(𝐹‘1)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 ∧ w3a 1084 = wceq 1534 ∈ wcel 2099 ≠ wne 2930 ⊆ wss 3947 {cpr 4635 ‘cfv 6556 0cc0 11160 1c1 11161 〈“cs2 14852 〈“cs3 14853 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2697 ax-rep 5292 ax-sep 5306 ax-nul 5313 ax-pow 5371 ax-pr 5435 ax-un 7748 ax-cnex 11216 ax-resscn 11217 ax-1cn 11218 ax-icn 11219 ax-addcl 11220 ax-addrcl 11221 ax-mulcl 11222 ax-mulrcl 11223 ax-mulcom 11224 ax-addass 11225 ax-mulass 11226 ax-distr 11227 ax-i2m1 11228 ax-1ne0 11229 ax-1rid 11230 ax-rnegex 11231 ax-rrecex 11232 ax-cnre 11233 ax-pre-lttri 11234 ax-pre-lttrn 11235 ax-pre-ltadd 11236 ax-pre-mulgt0 11237 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2704 df-cleq 2718 df-clel 2803 df-nfc 2878 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3365 df-rab 3420 df-v 3464 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3967 df-nul 4326 df-if 4534 df-pw 4609 df-sn 4634 df-pr 4636 df-op 4640 df-uni 4916 df-int 4957 df-iun 5005 df-br 5156 df-opab 5218 df-mpt 5239 df-tr 5273 df-id 5582 df-eprel 5588 df-po 5596 df-so 5597 df-fr 5639 df-we 5641 df-xp 5690 df-rel 5691 df-cnv 5692 df-co 5693 df-dm 5694 df-rn 5695 df-res 5696 df-ima 5697 df-pred 6314 df-ord 6381 df-on 6382 df-lim 6383 df-suc 6384 df-iota 6508 df-fun 6558 df-fn 6559 df-f 6560 df-f1 6561 df-fo 6562 df-f1o 6563 df-fv 6564 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-om 7879 df-1st 8005 df-2nd 8006 df-frecs 8298 df-wrecs 8329 df-recs 8403 df-rdg 8442 df-1o 8498 df-er 8736 df-en 8977 df-dom 8978 df-sdom 8979 df-fin 8980 df-card 9984 df-pnf 11302 df-mnf 11303 df-xr 11304 df-ltxr 11305 df-le 11306 df-sub 11498 df-neg 11499 df-nn 12267 df-n0 12527 df-z 12613 df-uz 12877 df-fz 13541 df-fzo 13684 df-hash 14350 df-word 14525 df-concat 14581 df-s1 14606 df-s2 14859 |
This theorem is referenced by: 2wlkdlem10 29872 |
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