Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > elfrlmbasn0 | Structured version Visualization version GIF version |
Description: If the dimension of a free module over a ring is not 0, every element of its base set is not empty. (Contributed by AV, 10-Feb-2019.) |
Ref | Expression |
---|---|
frlmfibas.f | ⊢ 𝐹 = (𝑅 freeLMod 𝐼) |
frlmfibas.n | ⊢ 𝑁 = (Base‘𝑅) |
elfrlmbasn0.b | ⊢ 𝐵 = (Base‘𝐹) |
Ref | Expression |
---|---|
elfrlmbasn0 | ⊢ ((𝐼 ∈ 𝑉 ∧ 𝐼 ≠ ∅) → (𝑋 ∈ 𝐵 → 𝑋 ≠ ∅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | frlmfibas.f | . . . 4 ⊢ 𝐹 = (𝑅 freeLMod 𝐼) | |
2 | frlmfibas.n | . . . 4 ⊢ 𝑁 = (Base‘𝑅) | |
3 | elfrlmbasn0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐹) | |
4 | 1, 2, 3 | frlmbasf 20978 | . . 3 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑋 ∈ 𝐵) → 𝑋:𝐼⟶𝑁) |
5 | 4 | ex 413 | . 2 ⊢ (𝐼 ∈ 𝑉 → (𝑋 ∈ 𝐵 → 𝑋:𝐼⟶𝑁)) |
6 | f0dom0 6656 | . . . . 5 ⊢ (𝑋:𝐼⟶𝑁 → (𝐼 = ∅ ↔ 𝑋 = ∅)) | |
7 | 6 | biimprd 247 | . . . 4 ⊢ (𝑋:𝐼⟶𝑁 → (𝑋 = ∅ → 𝐼 = ∅)) |
8 | 7 | necon3d 2966 | . . 3 ⊢ (𝑋:𝐼⟶𝑁 → (𝐼 ≠ ∅ → 𝑋 ≠ ∅)) |
9 | 8 | com12 32 | . 2 ⊢ (𝐼 ≠ ∅ → (𝑋:𝐼⟶𝑁 → 𝑋 ≠ ∅)) |
10 | 5, 9 | sylan9 508 | 1 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝐼 ≠ ∅) → (𝑋 ∈ 𝐵 → 𝑋 ≠ ∅)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1542 ∈ wcel 2110 ≠ wne 2945 ∅c0 4262 ⟶wf 6428 ‘cfv 6432 (class class class)co 7272 Basecbs 16923 freeLMod cfrlm 20964 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-rep 5214 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7583 ax-cnex 10938 ax-resscn 10939 ax-1cn 10940 ax-icn 10941 ax-addcl 10942 ax-addrcl 10943 ax-mulcl 10944 ax-mulrcl 10945 ax-mulcom 10946 ax-addass 10947 ax-mulass 10948 ax-distr 10949 ax-i2m1 10950 ax-1ne0 10951 ax-1rid 10952 ax-rnegex 10953 ax-rrecex 10954 ax-cnre 10955 ax-pre-lttri 10956 ax-pre-lttrn 10957 ax-pre-ltadd 10958 ax-pre-mulgt0 10959 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4846 df-iun 4932 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-eprel 5496 df-po 5504 df-so 5505 df-fr 5545 df-we 5547 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-pred 6201 df-ord 6268 df-on 6269 df-lim 6270 df-suc 6271 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-riota 7229 df-ov 7275 df-oprab 7276 df-mpo 7277 df-om 7708 df-1st 7825 df-2nd 7826 df-supp 7970 df-frecs 8089 df-wrecs 8120 df-recs 8194 df-rdg 8233 df-1o 8289 df-er 8490 df-map 8609 df-ixp 8678 df-en 8726 df-dom 8727 df-sdom 8728 df-fin 8729 df-fsupp 9117 df-sup 9189 df-pnf 11022 df-mnf 11023 df-xr 11024 df-ltxr 11025 df-le 11026 df-sub 11218 df-neg 11219 df-nn 11985 df-2 12047 df-3 12048 df-4 12049 df-5 12050 df-6 12051 df-7 12052 df-8 12053 df-9 12054 df-n0 12245 df-z 12331 df-dec 12449 df-uz 12594 df-fz 13251 df-struct 16859 df-sets 16876 df-slot 16894 df-ndx 16906 df-base 16924 df-ress 16953 df-plusg 16986 df-mulr 16987 df-sca 16989 df-vsca 16990 df-ip 16991 df-tset 16992 df-ple 16993 df-ds 16995 df-hom 16997 df-cco 16998 df-0g 17163 df-prds 17169 df-pws 17171 df-sra 20445 df-rgmod 20446 df-dsmm 20950 df-frlm 20965 |
This theorem is referenced by: mamufacex 21549 |
Copyright terms: Public domain | W3C validator |