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| Mirrors > Home > MPE Home > Th. List > lspsnsub | Structured version Visualization version GIF version | ||
| Description: Swapping subtraction order does not change the span of a singleton. (Contributed by NM, 4-Apr-2015.) |
| Ref | Expression |
|---|---|
| lspsnsub.v | ⊢ 𝑉 = (Base‘𝑊) |
| lspsnsub.s | ⊢ − = (-g‘𝑊) |
| lspsnsub.n | ⊢ 𝑁 = (LSpan‘𝑊) |
| lspsnsub.w | ⊢ (𝜑 → 𝑊 ∈ LMod) |
| lspsnsub.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
| lspsnsub.y | ⊢ (𝜑 → 𝑌 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| lspsnsub | ⊢ (𝜑 → (𝑁‘{(𝑋 − 𝑌)}) = (𝑁‘{(𝑌 − 𝑋)})) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lspsnsub.w | . . 3 ⊢ (𝜑 → 𝑊 ∈ LMod) | |
| 2 | lspsnsub.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 3 | lspsnsub.y | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝑉) | |
| 4 | lspsnsub.v | . . . . 5 ⊢ 𝑉 = (Base‘𝑊) | |
| 5 | lspsnsub.s | . . . . 5 ⊢ − = (-g‘𝑊) | |
| 6 | 4, 5 | lmodvsubcl 20869 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → (𝑋 − 𝑌) ∈ 𝑉) |
| 7 | 1, 2, 3, 6 | syl3anc 1373 | . . 3 ⊢ (𝜑 → (𝑋 − 𝑌) ∈ 𝑉) |
| 8 | eqid 2736 | . . . 4 ⊢ (invg‘𝑊) = (invg‘𝑊) | |
| 9 | lspsnsub.n | . . . 4 ⊢ 𝑁 = (LSpan‘𝑊) | |
| 10 | 4, 8, 9 | lspsnneg 20968 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ (𝑋 − 𝑌) ∈ 𝑉) → (𝑁‘{((invg‘𝑊)‘(𝑋 − 𝑌))}) = (𝑁‘{(𝑋 − 𝑌)})) |
| 11 | 1, 7, 10 | syl2anc 584 | . 2 ⊢ (𝜑 → (𝑁‘{((invg‘𝑊)‘(𝑋 − 𝑌))}) = (𝑁‘{(𝑋 − 𝑌)})) |
| 12 | lmodgrp 20829 | . . . . . 6 ⊢ (𝑊 ∈ LMod → 𝑊 ∈ Grp) | |
| 13 | 1, 12 | syl 17 | . . . . 5 ⊢ (𝜑 → 𝑊 ∈ Grp) |
| 14 | 4, 5, 8 | grpinvsub 19010 | . . . . 5 ⊢ ((𝑊 ∈ Grp ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → ((invg‘𝑊)‘(𝑋 − 𝑌)) = (𝑌 − 𝑋)) |
| 15 | 13, 2, 3, 14 | syl3anc 1373 | . . . 4 ⊢ (𝜑 → ((invg‘𝑊)‘(𝑋 − 𝑌)) = (𝑌 − 𝑋)) |
| 16 | 15 | sneqd 4618 | . . 3 ⊢ (𝜑 → {((invg‘𝑊)‘(𝑋 − 𝑌))} = {(𝑌 − 𝑋)}) |
| 17 | 16 | fveq2d 6885 | . 2 ⊢ (𝜑 → (𝑁‘{((invg‘𝑊)‘(𝑋 − 𝑌))}) = (𝑁‘{(𝑌 − 𝑋)})) |
| 18 | 11, 17 | eqtr3d 2773 | 1 ⊢ (𝜑 → (𝑁‘{(𝑋 − 𝑌)}) = (𝑁‘{(𝑌 − 𝑋)})) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 {csn 4606 ‘cfv 6536 (class class class)co 7410 Basecbs 17233 Grpcgrp 18921 invgcminusg 18922 -gcsg 18923 LModclmod 20822 LSpanclspn 20933 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2708 ax-rep 5254 ax-sep 5271 ax-nul 5281 ax-pow 5340 ax-pr 5407 ax-un 7734 ax-cnex 11190 ax-resscn 11191 ax-1cn 11192 ax-icn 11193 ax-addcl 11194 ax-addrcl 11195 ax-mulcl 11196 ax-mulrcl 11197 ax-mulcom 11198 ax-addass 11199 ax-mulass 11200 ax-distr 11201 ax-i2m1 11202 ax-1ne0 11203 ax-1rid 11204 ax-rnegex 11205 ax-rrecex 11206 ax-cnre 11207 ax-pre-lttri 11208 ax-pre-lttrn 11209 ax-pre-ltadd 11210 ax-pre-mulgt0 11211 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2810 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-rmo 3364 df-reu 3365 df-rab 3421 df-v 3466 df-sbc 3771 df-csb 3880 df-dif 3934 df-un 3936 df-in 3938 df-ss 3948 df-pss 3951 df-nul 4314 df-if 4506 df-pw 4582 df-sn 4607 df-pr 4609 df-op 4613 df-uni 4889 df-int 4928 df-iun 4974 df-br 5125 df-opab 5187 df-mpt 5207 df-tr 5235 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6295 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7867 df-1st 7993 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8390 df-rdg 8429 df-er 8724 df-en 8965 df-dom 8966 df-sdom 8967 df-pnf 11276 df-mnf 11277 df-xr 11278 df-ltxr 11279 df-le 11280 df-sub 11473 df-neg 11474 df-nn 12246 df-2 12308 df-sets 17188 df-slot 17206 df-ndx 17218 df-base 17234 df-plusg 17289 df-0g 17460 df-mgm 18623 df-sgrp 18702 df-mnd 18718 df-grp 18924 df-minusg 18925 df-sbg 18926 df-mgp 20106 df-ur 20147 df-ring 20200 df-lmod 20824 df-lss 20894 df-lsp 20934 |
| This theorem is referenced by: baerlem3lem2 41734 baerlem5blem2 41736 mapdheq2 41753 |
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