cdlemfnid - Mathbox for Norm Megill

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Theorem cdlemfnid 36354

Description: cdlemf 36353 with additional constraint of non-identity. (Contributed by NM, 20-Jun-2013.)

**Hypotheses**
Ref	Expression
cdlemfnid.b	⊢ 𝐵 = (Base‘𝐾)
cdlemfnid.l	⊢ ≤ = (le‘𝐾)
cdlemfnid.a	⊢ 𝐴 = (Atoms‘𝐾)
cdlemfnid.h	⊢ 𝐻 = (LHyp‘𝐾)
cdlemfnid.t	⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
cdlemfnid.r	⊢ 𝑅 = ((trL‘𝐾)‘𝑊)

**Assertion**
Ref	Expression
cdlemfnid	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))

Distinct variable groups: 𝐴,𝑓 𝑓,𝐻 𝑓,𝐾 ≤ ,𝑓 𝑇,𝑓 𝑈,𝑓 𝑓,𝑊 Allowed substitution hints: 𝐵(𝑓) 𝑅(𝑓)

**Proof of Theorem cdlemfnid**
Step	Hyp	Ref	Expression
1		cdlemfnid.l	. . 3 ⊢ ≤ = (le‘𝐾)
2		cdlemfnid.a	. . 3 ⊢ 𝐴 = (Atoms‘𝐾)
3		cdlemfnid.h	. . 3 ⊢ 𝐻 = (LHyp‘𝐾)
4		cdlemfnid.t	. . 3 ⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
5		cdlemfnid.r	. . 3 ⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
6	1, 2, 3, 4, 5	cdlemf 36353	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 (𝑅‘𝑓) = 𝑈)
7		simp3 1133	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑅‘𝑓) = 𝑈)
8		simp1rl 1305	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑈 ∈ 𝐴)
9	7, 8	eqeltrd 2839	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑅‘𝑓) ∈ 𝐴)
10		simp1l 1240	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
11		simp2 1132	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑓 ∈ 𝑇)
12		cdlemfnid.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝐾)
13	12, 2, 3, 4, 5	trlnidatb 35967	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑓 ∈ 𝑇) → (𝑓 ≠ ( I ↾ 𝐵) ↔ (𝑅‘𝑓) ∈ 𝐴))
14	10, 11, 13	syl2anc 696	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑓 ≠ ( I ↾ 𝐵) ↔ (𝑅‘𝑓) ∈ 𝐴))
15	9, 14	mpbird 247	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑓 ≠ ( I ↾ 𝐵))
16	7, 15	jca 555	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))
17	16	3expia 1115	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇) → ((𝑅‘𝑓) = 𝑈 → ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵))))
18	17	reximdva 3155	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → (∃𝑓 ∈ 𝑇 (𝑅‘𝑓) = 𝑈 → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵))))
19	6, 18	mpd 15	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 196 ∧ wa 383 ∧ w3a 1072 = wceq 1632 ∈ wcel 2139 ≠ wne 2932 ∃wrex 3051 class class class wbr 4804 I cid 5173 ↾ cres 5268 ‘cfv 6049 Basecbs 16059 lecple 16150 Atomscatm 35053 HLchlt 35140 LHypclh 35773 LTrncltrn 35890 trLctrl 35948

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1871 ax-4 1886 ax-5 1988 ax-6 2054 ax-7 2090 ax-8 2141 ax-9 2148 ax-10 2168 ax-11 2183 ax-12 2196 ax-13 2391 ax-ext 2740 ax-rep 4923 ax-sep 4933 ax-nul 4941 ax-pow 4992 ax-pr 5055 ax-un 7114 ax-riotaBAD 34742

This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1635 df-ex 1854 df-nf 1859 df-sb 2047 df-eu 2611 df-mo 2612 df-clab 2747 df-cleq 2753 df-clel 2756 df-nfc 2891 df-ne 2933 df-nel 3036 df-ral 3055 df-rex 3056 df-reu 3057 df-rmo 3058 df-rab 3059 df-v 3342 df-sbc 3577 df-csb 3675 df-dif 3718 df-un 3720 df-in 3722 df-ss 3729 df-nul 4059 df-if 4231 df-pw 4304 df-sn 4322 df-pr 4324 df-op 4328 df-uni 4589 df-iun 4674 df-iin 4675 df-br 4805 df-opab 4865 df-mpt 4882 df-id 5174 df-xp 5272 df-rel 5273 df-cnv 5274 df-co 5275 df-dm 5276 df-rn 5277 df-res 5278 df-ima 5279 df-iota 6012 df-fun 6051 df-fn 6052 df-f 6053 df-f1 6054 df-fo 6055 df-f1o 6056 df-fv 6057 df-riota 6774 df-ov 6816 df-oprab 6817 df-mpt2 6818 df-1st 7333 df-2nd 7334 df-undef 7568 df-map 8025 df-preset 17129 df-poset 17147 df-plt 17159 df-lub 17175 df-glb 17176 df-join 17177 df-meet 17178 df-p0 17240 df-p1 17241 df-lat 17247 df-clat 17309 df-oposet 34966 df-ol 34968 df-oml 34969 df-covers 35056 df-ats 35057 df-atl 35088 df-cvlat 35112 df-hlat 35141 df-llines 35287 df-lplanes 35288 df-lvols 35289 df-lines 35290 df-psubsp 35292 df-pmap 35293 df-padd 35585 df-lhyp 35777 df-laut 35778 df-ldil 35893 df-ltrn 35894 df-trl 35949

This theorem is referenced by: cdlemftr3 36355 cdlemj3 36613

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