theoremx-atleast ⊦ ∃ ix. # ix = # solix(x) ∧ ascsubseq(ix, x)inv-last-nonemptytheoremx-atleast-indascsubseq-baseinv-baseprecedesex-basesolix-defsolix-invprecedesex-solix
512theoremx-atleast-prooftheoremx-atleast-proof-info
The proof is valid.
theoremx
../../../../../../lib/basic/specs/list-data/export/unit.xmllist-dataindexseq-stackseq../../../../../../lib/basic/specs/list-data/export/size-01/longlemmainfo.xmlsize-01../../../../../../lib/basic/specs/list-data/export/unit.xmllist-dataindexseq../../../../../../lib/basic/specs/list-data/export/l/longlemmainfo.xmll../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/Last/longlemmainfo.xmlLast../../../../../../lib/basic/specs/list-last/export/unit.xmllist-lastindexseq-stackseq../../../../../../lib/basic/specs/list-last/export/lb/longlemmainfo.xmllb../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq-stackseq../../../../../../lib/basic/specs/list/export/a/longlemmainfo.xmla../../../../../../lib/basic/specs/list-last/export/unit.xmllist-lastindexseq-stackseq../../../../../../lib/basic/specs/list-last/export/butlast-last/longlemmainfo.xmlbutlast-last../../../../../../lib/basic/specs/nat/export/unit.xmlnat../../../../../../lib/basic/specs/nat/export/elim-pred-c/longlemmainfo.xmlelim-pred-c../../../../../../lib/basic/specs/list-data/export/unit.xmllist-dataindexseq-stackseq../../../../../../lib/basic/specs/list-data/export/l/longlemmainfo.xmll../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/in-08/longlemmainfo.xmlin-08../../../../../../lib/basic/specs/list-data/export/unit.xmllist-dataindexseq../../../../../../lib/basic/specs/list-data/export/elim-list-c/longlemmainfo.xmlelim-list-c../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/in-17/longlemmainfo.xmlin-17../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/in-append/longlemmainfo.xmlin-append../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/in-14/longlemmainfo.xmlin-14../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/c/longlemmainfo.xmlc../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/len/longlemmainfo.xmllen../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/len-02/longlemmainfo.xmllen-02../../../../../../lib/basic/specs/list/export/unit.xmllistindexseq../../../../../../lib/basic/specs/list/export/a/longlemmainfo.xmla../../../../../../lib/basic/specs/nat-basic2/export/unit.xmlnat-basic2../../../../../../lib/basic/specs/nat-basic2/export/eq-01/longlemmainfo.xmleq-01../../../../../../lib/basic/specs/nat-basic2/export/unit.xmlnat-basic2../../../../../../lib/basic/specs/nat-basic2/export/a/longlemmainfo.xmla../../../../../../lib/basic/specs/nat-basic2/export/unit.xmlnat-basic2../../../../../../lib/basic/specs/nat-basic2/export/c/longlemmainfo.xmlc