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Mirrors > Home > MPE Home > Th. List > gsumsnf | Structured version Visualization version GIF version |
Description: Group sum of a singleton, using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Mario Carneiro, 19-Dec-2014.) (Revised by Thierry Arnoux, 28-Mar-2018.) (Proof shortened by AV, 11-Dec-2019.) |
Ref | Expression |
---|---|
gsumsnf.c | ⊢ Ⅎ𝑘𝐶 |
gsumsnf.b | ⊢ 𝐵 = (Base‘𝐺) |
gsumsnf.s | ⊢ (𝑘 = 𝑀 → 𝐴 = 𝐶) |
Ref | Expression |
---|---|
gsumsnf | ⊢ ((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | gsumsnf.b | . 2 ⊢ 𝐵 = (Base‘𝐺) | |
2 | simp1 1136 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) → 𝐺 ∈ Mnd) | |
3 | simp2 1137 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) → 𝑀 ∈ 𝑉) | |
4 | simp3 1138 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) → 𝐶 ∈ 𝐵) | |
5 | gsumsnf.s | . . 3 ⊢ (𝑘 = 𝑀 → 𝐴 = 𝐶) | |
6 | 5 | adantl 482 | . 2 ⊢ (((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) ∧ 𝑘 = 𝑀) → 𝐴 = 𝐶) |
7 | nfv 1917 | . . 3 ⊢ Ⅎ𝑘 𝐺 ∈ Mnd | |
8 | nfv 1917 | . . 3 ⊢ Ⅎ𝑘 𝑀 ∈ 𝑉 | |
9 | gsumsnf.c | . . . 4 ⊢ Ⅎ𝑘𝐶 | |
10 | 9 | nfel1 2918 | . . 3 ⊢ Ⅎ𝑘 𝐶 ∈ 𝐵 |
11 | 7, 8, 10 | nf3an 1904 | . 2 ⊢ Ⅎ𝑘(𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) |
12 | 1, 2, 3, 4, 6, 11, 9 | gsumsnfd 19775 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝑀 ∈ 𝑉 ∧ 𝐶 ∈ 𝐵) → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 Ⅎwnfc 2882 {csn 4619 ↦ cmpt 5221 ‘cfv 6529 (class class class)co 7390 Basecbs 17123 Σg cgsu 17365 Mndcmnd 18599 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-rep 5275 ax-sep 5289 ax-nul 5296 ax-pow 5353 ax-pr 5417 ax-un 7705 ax-cnex 11145 ax-resscn 11146 ax-1cn 11147 ax-icn 11148 ax-addcl 11149 ax-addrcl 11150 ax-mulcl 11151 ax-mulrcl 11152 ax-mulcom 11153 ax-addass 11154 ax-mulass 11155 ax-distr 11156 ax-i2m1 11157 ax-1ne0 11158 ax-1rid 11159 ax-rnegex 11160 ax-rrecex 11161 ax-cnre 11162 ax-pre-lttri 11163 ax-pre-lttrn 11164 ax-pre-ltadd 11165 ax-pre-mulgt0 11166 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3430 df-v 3472 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3960 df-nul 4316 df-if 4520 df-pw 4595 df-sn 4620 df-pr 4622 df-op 4626 df-uni 4899 df-int 4941 df-iun 4989 df-br 5139 df-opab 5201 df-mpt 5222 df-tr 5256 df-id 5564 df-eprel 5570 df-po 5578 df-so 5579 df-fr 5621 df-se 5622 df-we 5623 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6286 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6531 df-fn 6532 df-f 6533 df-f1 6534 df-fo 6535 df-f1o 6536 df-fv 6537 df-isom 6538 df-riota 7346 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7836 df-1st 7954 df-2nd 7955 df-supp 8126 df-frecs 8245 df-wrecs 8276 df-recs 8350 df-rdg 8389 df-1o 8445 df-er 8683 df-en 8920 df-dom 8921 df-sdom 8922 df-fin 8923 df-oi 9484 df-card 9913 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11425 df-neg 11426 df-nn 12192 df-n0 12452 df-z 12538 df-uz 12802 df-fz 13464 df-fzo 13607 df-seq 13946 df-hash 14270 df-0g 17366 df-gsum 17367 df-mgm 18540 df-sgrp 18589 df-mnd 18600 df-mulg 18920 df-cntz 19144 |
This theorem is referenced by: gsumsn 19778 |
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