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Theorem lsp0 20960

Description: Span of the empty set. (Contributed by Mario Carneiro, 5-Sep-2014.)

**Hypotheses**
Ref	Expression
lspsn0.z	⊢ 0 = (0_g‘𝑊)
lspsn0.n	⊢ 𝑁 = (LSpan‘𝑊)

**Assertion**
Ref	Expression
lsp0	⊢ (𝑊 ∈ LMod → (𝑁‘∅) = { 0 })

**Proof of Theorem lsp0**
Step	Hyp	Ref	Expression
1		lspsn0.z	. . . 4 ⊢ 0 = (0_g‘𝑊)
2		eqid 2736	. . . 4 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊)
3	1, 2	lsssn0 20899	. . 3 ⊢ (𝑊 ∈ LMod → { 0 } ∈ (LSubSp‘𝑊))
4		0ss 4352	. . . 4 ⊢ ∅ ⊆ { 0 }
5		lspsn0.n	. . . . 5 ⊢ 𝑁 = (LSpan‘𝑊)
6	2, 5	lspssp 20939	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ { 0 } ∈ (LSubSp‘𝑊) ∧ ∅ ⊆ { 0 }) → (𝑁‘∅) ⊆ { 0 })
7	4, 6	mp3an3 1452	. . 3 ⊢ ((𝑊 ∈ LMod ∧ { 0 } ∈ (LSubSp‘𝑊)) → (𝑁‘∅) ⊆ { 0 })
8	3, 7	mpdan 687	. 2 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) ⊆ { 0 })
9		0ss 4352	. . . 4 ⊢ ∅ ⊆ (Base‘𝑊)
10		eqid 2736	. . . . 5 ⊢ (Base‘𝑊) = (Base‘𝑊)
11	10, 2, 5	lspcl 20927	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ ∅ ⊆ (Base‘𝑊)) → (𝑁‘∅) ∈ (LSubSp‘𝑊))
12	9, 11	mpan2 691	. . 3 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) ∈ (LSubSp‘𝑊))
13	1, 2	lss0ss 20900	. . 3 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘∅) ∈ (LSubSp‘𝑊)) → { 0 } ⊆ (𝑁‘∅))
14	12, 13	mpdan 687	. 2 ⊢ (𝑊 ∈ LMod → { 0 } ⊆ (𝑁‘∅))
15	8, 14	eqssd 3951	1 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) = { 0 })

Colors of variables: wff setvar class

Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 ⊆ wss 3901 ∅c0 4285 {csn 4580 ‘cfv 6492 Basecbs 17136 0_gc0g 17359 LModclmod 20811 LSubSpclss 20882 LSpanclspn 20922

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 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-pre-mulgt0 11103

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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3350 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-int 4903 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-er 8635 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 df-le 11172 df-sub 11366 df-neg 11367 df-nn 12146 df-2 12208 df-sets 17091 df-slot 17109 df-ndx 17121 df-base 17137 df-plusg 17190 df-0g 17361 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-grp 18866 df-minusg 18867 df-sbg 18868 df-cmn 19711 df-abl 19712 df-mgp 20076 df-rng 20088 df-ur 20117 df-ring 20170 df-lmod 20813 df-lss 20883 df-lsp 20923

This theorem is referenced by: lspuni0 20961 lss0v 20968 lspsnat 21100 lsppratlem3 21104 ocvz 21633 lindssn 33459 lvecdim0i 33762 lbslsat 33773

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